Lesson Worksheet: Number of Solutions of Linear Equations Mathematics • 8th Grade

In this worksheet, we will practice determining the number of solutions of a linear equation in one variable.

Q1:

Solve 3(4π‘₯βˆ’12)+8=12π‘₯βˆ’6.

  • Aπ‘₯=1
  • Bπ‘₯=5
  • Cπ‘₯=βˆ’5
  • DThere is an infinite number of solutions as the equation is always true.
  • EThere is no solution for π‘₯

Q2:

What is the value of π‘Ž if the equation 12π‘₯=π‘Ž(π‘₯+3) has no solutions?

Q3:

Jacob believes the equation π‘Žπ‘₯+5=𝑏(2π‘₯+2) can have more than one solution for special values of π‘Ž and 𝑏. Is he right? If so, what are the values?

  • AYes, π‘Ž=52, 𝑏=5
  • BNo
  • CYes, π‘Ž=5, 𝑏=52
  • DYes, π‘Ž=0, 𝑏=52

Q4:

Solve π‘₯+3(2π‘₯+4)=7π‘₯+4.

  • Aπ‘₯=βˆ’2
  • Bπ‘₯=8
  • Cπ‘₯=2
  • DThere is no solution for π‘₯.
  • Eπ‘₯=βˆ’8

Q5:

How many solutions does the equation 4π‘₯+10=2(2π‘₯βˆ’1) have?

  • AOne solution
  • BNo solutions
  • CAn infinite number of solutions

Q6:

How many solutions does the equation 6π‘₯+2=2(3π‘₯+1) have?

  • AOne solution
  • BNo solutions
  • CAn infinite number of solutions

Q7:

True or False: The equation 12π‘₯βˆ’3=2(5π‘₯βˆ’3)+2π‘₯ is a true statement.

  • ATrue
  • BFalse

Q8:

How many solutions does the equation 5π‘₯βˆ’6=8+4π‘₯ have?

  • AOne solution
  • BAn infinite number of solutions
  • CNo solutions

Q9:

True or False: The equation 15βˆ’11π‘₯=5(1βˆ’2π‘₯) is a true statement when π‘₯=10.

  • ATrue
  • BFalse

Q10:

What is the value of π‘Ž if the equation 24π‘₯+2=π‘Ž(12π‘₯+1) has an infinite number of solutions?

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