Atividade: Adicionando e Subtraindo Expressões Algébricas

Nesta atividade, nós vamos praticar a adicionar e subtrair expressões algébricas adicionando e subtraindo termos semelhantes.

Q1:

Some ๏€น7๐‘Ž+6๐‘๏…๏Šจ a ๏€น5๐‘+๐‘โˆ’5๐‘Ž๏…๏Šฉ๏Šจ.

  • A 5 ๐‘ + 7 ๐‘ + 1 2 ๐‘Ž ๏Šฉ ๏Šจ
  • B 5 ๐‘ + 7 ๐‘ + 2 ๐‘Ž ๏Šฉ ๏Šจ
  • C 5 ๐‘ + 5 ๐‘ + 2 ๐‘Ž ๏Šฉ ๏Šจ
  • D โˆ’ 5 ๐‘ + 7 ๐‘ + 2 ๐‘Ž ๏Šฉ ๏Šจ

Q2:

Subtraia 19๐‘ฆ+18๐‘ฅ de 23๐‘ฅโˆ’24๐‘ฆ.

  • A 5 ๐‘ฅ + 4 3 ๐‘ฆ
  • B 4 1 ๐‘ฅ + 5 ๐‘ฆ
  • C 5 ๐‘ฅ โˆ’ 4 3 ๐‘ฆ
  • D 4 ๐‘ฅ + 4 2 ๐‘ฆ
  • E 4 1 ๐‘ฅ โˆ’ 5 ๐‘ฆ

Q3:

Subtraia 7๐‘ฆ+๐‘งโˆ’3๐‘ฅ๏Šจ๏Šฉ de 6๐‘ฅ+5๐‘งโˆ’8๐‘ฆ๏Šฉ๏Šจ.

  • A 9 ๐‘ฅ + 6 ๐‘ง โˆ’ 1 5 ๐‘ฆ ๏Šฉ ๏Šจ
  • B 3 ๐‘ฅ + 4 ๐‘ง โˆ’ 1 5 ๐‘ฆ ๏Šฉ ๏Šจ
  • C 9 ๐‘ฅ + 4 ๐‘ง โˆ’ 1 5 ๐‘ฆ ๏Šฉ ๏Šจ
  • D 9 ๐‘ฅ + 4 ๐‘ง โˆ’ ๐‘ฆ ๏Šฉ ๏Šจ

Q4:

Some 38๐‘ฅโˆ’33๐‘ฆ+28๐‘ง, 24๐‘ฆโˆ’23๐‘ฅโˆ’23๐‘ง, e 24๐‘ฅโˆ’11๐‘งโˆ’17๐‘ฆ, subtraia o resultado de 26๐‘ฅโˆ’17๐‘ฆ+19๐‘ง.

  • A โˆ’ 1 3 ๐‘ฅ + 9 ๐‘ฆ + 2 5 ๐‘ง
  • B 1 3 ๐‘ฅ + 9 ๐‘ฆ + 2 5 ๐‘ง
  • C 1 3 ๐‘ฅ โˆ’ 9 ๐‘ฆ โˆ’ 2 5 ๐‘ง
  • D 5 9 ๐‘ฅ + 2 5 ๐‘ฆ + 3 ๐‘ง
  • E 5 9 ๐‘ฅ โˆ’ 2 5 ๐‘ฆ โˆ’ 3 ๐‘ง

Q5:

Some 7๐‘Ž๐‘โˆ’2๐‘๐‘‘โˆ’๐‘’๐‘“๏Šจ๏Šจ๏Šฉ๏Šจ a 8๐‘’๐‘“โˆ’9๐‘๐‘‘โˆ’5๐‘Ž๐‘๏Šฉ๏Šจ๏Šจ๏Šจ.

  • A 7 ๐‘’ ๐‘“ โˆ’ 1 1 ๐‘ ๐‘‘ + 1 2 ๐‘Ž ๐‘ ๏Šฉ ๏Šจ ๏Šจ ๏Šจ
  • B 7 ๐‘’ ๐‘“ โˆ’ 1 1 ๐‘ ๐‘‘ + 2 ๐‘Ž ๐‘ ๏Šฉ ๏Šจ ๏Šจ ๏Šจ
  • C 7 ๐‘’ ๐‘“ + 7 ๐‘ ๐‘‘ + 2 ๐‘Ž ๐‘ ๏Šฉ ๏Šจ ๏Šจ ๏Šจ
  • D โˆ’ 9 ๐‘’ ๐‘“ โˆ’ 1 1 ๐‘ ๐‘‘ + 2 ๐‘Ž ๐‘ ๏Šฉ ๏Šจ ๏Šจ ๏Šจ

Q6:

Subtraia ๏€นโˆ’8๐‘ฅ๐‘ฆ+2๐‘ฅ๐‘ฆ+6๐‘ฅ๐‘ฆ๏…๏Šจ๏Šฉ๏Šฉ๏Šช de ๏€นโˆ’๐‘ฅ๐‘ฆโˆ’8๐‘ฅ๐‘ฆ+9๐‘ฅ๐‘ฆ๏…๏Šช๏Šฉ๏Šฉ๏Šจ.

  • A ๐‘ฅ ๐‘ฆ โˆ’ 6 ๐‘ฅ ๐‘ฆ + 5 ๐‘ฅ ๐‘ฆ ๏Šจ ๏Šฉ ๏Šฉ ๏Šช
  • B 1 7 ๐‘ฅ ๐‘ฆ โˆ’ 1 0 ๐‘ฅ ๐‘ฆ โˆ’ 7 ๐‘ฅ ๐‘ฆ ๏Šช ๏Šจ ๏Šฌ ๏Šฌ ๏Šฎ ๏Šจ
  • C 1 7 ๐‘ฅ ๐‘ฆ โˆ’ 1 0 ๐‘ฅ ๐‘ฆ โˆ’ 7 ๐‘ฅ ๐‘ฆ ๏Šจ ๏Šฉ ๏Šฉ ๏Šช
  • D ๐‘ฅ ๐‘ฆ โˆ’ 6 ๐‘ฅ ๐‘ฆ + 5 ๐‘ฅ ๐‘ฆ ๏Šช ๏Šจ ๏Šฌ ๏Šฌ ๏Šฎ ๏Šจ

Q7:

Subtraia 6๐‘ฅโˆ’4๐‘ฆโˆ’๐‘ง๏Šฉ๏Šจ da soma de 9๐‘ฅ+8๐‘ฆโˆ’7๐‘ง๏Šฉ๏Šจ e 8๐‘ฅโˆ’9๐‘ฆโˆ’6๐‘ง๏Šฉ๏Šจ.

  • A 2 3 ๐‘ฅ โˆ’ 5 ๐‘ฆ โˆ’ 1 4 ๐‘ง ๏Šฉ ๏Šจ
  • B 1 1 ๐‘ฅ + 3 ๐‘ฆ โˆ’ 1 2 ๐‘ง ๏Šฉ ๏Šจ
  • C 1 1 ๐‘ฅ + 3 ๐‘ฆ โˆ’ 1 2 ๐‘ง ๏Šฌ ๏Šช ๏Šจ
  • D 2 3 ๐‘ฅ โˆ’ 5 ๐‘ฆ โˆ’ 1 4 ๐‘ง ๏Šฌ ๏Šช ๏Šจ

Q8:

Encontre uma expressรฃo para a diferenรงa entre as รกreas das duas figuras abaixo.

  • A 9 ๐‘ฅ + 8 3 ๐‘ฅ โˆ’ 2 0 ๏Šจ
  • B 1 5 ๐‘ฅ + 2 2 ๐‘ฅ โˆ’ 2 0 ๏Šจ
  • C 6 ๐‘ฅ + 1 0 5 ๐‘ฅ โˆ’ 9 ๏Šจ
  • D 6 ๐‘ฅ + 1 0 5 ๐‘ฅ โˆ’ 2 0 ๏Šจ
  • E 2 1 ๐‘ฅ + 1 2 7 ๐‘ฅ โˆ’ 2 0 ๏Šจ

Q9:

Simplifica ๏€น๐‘ก+5๏…โˆ’๏€น2๐‘ก+2๏…๏Šจ๏Šจ.

  • A 3 ๐‘ก + 7 ๏Šจ
  • B โˆ’ ๐‘ก + 7 ๏Šจ
  • C โˆ’ ๐‘ก + 3 ๏Šจ
  • D โˆ’ ๐‘ก โˆ’ 3 ๏Šจ
  • E 3 ๐‘ก + 3 ๏Šจ

Q10:

Determina ๐ดโˆ’๐ต sabendo que ๐ด=7๐‘โˆ’4๐‘+5๏Šจ e ๐ต=3๐‘โˆ’4๐‘+1๏Šจ.

  • A 4 ๐‘ + 4 ๏Šจ
  • B 1 0 ๐‘ + 4 ๏Šจ
  • C 4 ๐‘ + 8 ๐‘ + 4 ๏Šจ
  • D 1 0 ๐‘ + 8 ๐‘ + 6 ๏Šจ
  • E 4 ๐‘ + 6 ๏Šจ

Q11:

Determina ๐ดโˆ’๐ต dados ๐ด=5๐‘ฅโˆ’3๐‘ฅ๏Šฉ e ๐ต=โˆ’6๐‘ฅ+3๐‘ฅ๏Šจ.

  • A 5 ๐‘ฅ + 6 ๐‘ฅ โˆ’ 6 ๐‘ฅ ๏Šฉ ๏Šจ
  • B 1 1 ๐‘ฅ ๏Šฉ
  • C 5 ๐‘ฅ + 6 ๐‘ฅ โˆ’ 3 ๐‘ฅ ๏Šฉ ๏Šจ
  • D 1 1 ๐‘ฅ โˆ’ 6 ๐‘ฅ ๏Šฉ
  • E 5 ๐‘ฅ + 6 ๐‘ฅ ๏Šฉ ๏Šจ

Q12:

Simplifica ๏€น2๐‘Žโˆ’4๐‘Žโˆ’9๏…+๏€น5๐‘Žโˆ’3๐‘Ž+1๏…๏Šฉ๏Šจ๏Šฉ.

  • A 7 ๐‘Ž + 4 ๐‘Ž + 3 ๐‘Ž โˆ’ 8 ๏Šฉ ๏Šจ
  • B 7 ๐‘Ž โˆ’ 4 ๐‘Ž โˆ’ 3 ๐‘Ž โˆ’ 8 ๏Šฉ ๏Šจ
  • C 7 ๐‘Ž + 4 ๐‘Ž โˆ’ 3 ๐‘Ž โˆ’ 8 ๏Šฉ ๏Šจ
  • D 7 ๐‘Ž โˆ’ 7 ๐‘Ž โˆ’ 3 ๐‘Ž โˆ’ 8 ๏Šฉ ๏Šจ
  • E 7 ๐‘Ž โˆ’ 4 ๐‘Ž + 3 ๐‘Ž โˆ’ 8 ๏Šฉ ๏Šจ

Q13:

Determina ๐ด+๐ต sendo ๐ด=7๐‘ฆโˆ’4๐‘ฆ+5๏Šจ e ๐ต=3๐‘ฆโˆ’4๐‘ฆ+1๏Šจ.

  • A 7 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 6 ๏Šจ
  • B 2 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 6 ๏Šจ
  • C 1 0 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 4 ๏Šจ
  • D 1 0 ๐‘ฆ + 8 ๐‘ฆ + 6 ๏Šจ
  • E 1 0 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 6 ๏Šจ

Q14:

Simplifica ๏€น8๐‘ฆโˆ’3๐‘ฆ+2๏…โˆ’๏€น3๐‘ฆ+5๐‘ฆ+1๏…๏Šจ๏Šจ.

  • A 5 ๐‘ฆ + 2 ๐‘ฆ + 1 ๏Šจ
  • B 1 1 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 1 ๏Šจ
  • C 5 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 1 ๏Šจ
  • D 1 1 ๐‘ฆ + 2 ๐‘ฆ + 3 ๏Šจ
  • E 5 ๐‘ฆ โˆ’ 8 ๐‘ฆ + 3 ๏Šจ

Q15:

O Lucas tinha 3๐‘ฅ+6 moedas e deu 2๐‘ฅ+3 moedas ao Tiago. Com quantas moedas ficou o Lucas?

  • A ๐‘ฅ + 6
  • B ๐‘ฅ + 3
  • C 5 ๐‘ฅ + 9
  • D 3 ๐‘ฅ + 6 2 ๐‘ฅ + 3
  • E 3 โˆ’ ๐‘ฅ

Q16:

Simplifica (2๐‘ +1)โˆ’(3๐‘ +2).

  • A โˆ’ ๐‘  + 3
  • B 5 ๐‘  โˆ’ 1
  • C โˆ’ ๐‘  โˆ’ 1
  • D 5 ๐‘  โˆ’ 3
  • E 6 ๐‘  โˆ’ 1

Q17:

Simplifica (2๐‘ +1)+(3๐‘ +2).

  • A 5 ๐‘  + 3
  • B 4 ๐‘  + 7 ๐‘  + 3 ๏Šจ
  • C 6 ๐‘  + 3
  • D 5 ๐‘  + 2
  • E 5 ๐‘  โˆ’ 3

Q18:

Determine ๐ด+๐ต sabendo que ๐ด=5๐‘ โˆ’3๐‘ ๏Šฉ e ๐ต=โˆ’6๐‘ +3๐‘ ๏Šจ.

  • A 5 ๐‘  โˆ’ 6 ๐‘  ๏Šฉ ๏Šจ
  • B 5 ๐‘  + 6 ๐‘  ๏Šฉ ๏Šจ
  • C โˆ’ ๐‘  ๏Šฉ
  • D 5 ๐‘  โˆ’ 6 ๐‘  โˆ’ 6 ๐‘  ๏Šฉ ๏Šจ
  • E 5 ๐‘  ๏Šฉ

Q19:

Determina ๐ดโˆ’๐ต dados ๐ด=8๐‘ฅ+2 e ๐ต=5๐‘ฅโˆ’1.

  • A โˆ’ 3 ๐‘ฅ + 3
  • B 1 3 ๐‘ฅ + 3
  • C 3 ๐‘ฅ + 1
  • D 1 3 ๐‘ฅ + 1
  • E 3 ๐‘ฅ + 3

Q20:

Simplifica ๏€น๐‘ง+5๏…+๏€น2๐‘ง+2๏…๏Šจ๏Šจ.

  • A 3 ๐‘ง + 1 0 ๏Šจ
  • B 3 ๐‘ง + 7 ๏Šช
  • C 3 ๐‘ง + 7 ๏Šจ
  • D 2 ๐‘ง + 7 ๏Šจ
  • E 4 ๐‘ง + 7 ๏Šจ

Q21:

Simplifica ๏€น8๐‘ฅโˆ’3๐‘ฅ+2๏…+๏€น3๐‘ฅ+5๐‘ฅ+1๏…๏Šจ๏Šจ.

  • A 2 4 ๐‘ฅ + 2 ๐‘ฅ + 3 ๏Šจ
  • B 1 1 ๐‘ฅ + 2 ๐‘ฅ + 3 ๏Šจ
  • C 1 1 ๐‘ฅ + 8 ๐‘ฅ + 3 ๏Šจ
  • D 1 1 ๐‘ฅ + 2 ๐‘ฅ โˆ’ 1 ๏Šจ
  • E 1 1 ๐‘ฅ + 5 ๐‘ฅ + 3 ๏Šจ

Q22:

Determina ๐ดโˆ’๐ต sabendo que ๐ด=3๐‘ž+5๏Šจ e ๐ต=2๐‘ž+6๏Šจ.

  • A ๐‘ž โˆ’ 1 ๏Šจ
  • B ๐‘ž + 1 1 ๏Šจ
  • C 5 ๐‘ž + 1 1 ๏Šจ
  • D 5 ๐‘ž โˆ’ 1 ๏Šจ
  • E โˆ’ ๐‘ž โˆ’ 1 ๏Šจ

Q23:

Determine ๐ด+๐ต dados ๐ด=3๐‘ก+5๏Šจ e ๐ต=2๐‘ก+6๏Šจ.

  • A 5 ๐‘ก + 1 1 ๏Šจ
  • B 4 ๐‘ก + 1 1 ๏Šจ
  • C16
  • D 5 ๐‘ก + 1 1
  • E 5 ๐‘ก + 1 2 ๏Šจ

Q24:

Qual o simรฉtrico da expressรฃo algรฉbrica racional ๐‘ฅ+7๐‘ฅ+1?

  • A โˆ’ ๐‘ฅ + 7 1 โˆ’ ๐‘ฅ
  • B โˆ’ ๐‘ฅ + 7 ๐‘ฅ + 1
  • C ๐‘ฅ โˆ’ 7 ๐‘ฅ + 1
  • D ๐‘ฅ + 7 ๐‘ฅ โˆ’ 1
  • E ๐‘ฅ + 1 ๐‘ฅ + 7

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