Question Video: Subtracting Algebraic Expressions Mathematics • First Year of Preparatory School

Video Transcript

Subtract 19𝑦 plus 18𝑥 from 23𝑥 minus 24𝑦.

Writing this as one expression gives us 23𝑥 minus 24𝑦 minus 19𝑦 plus 18𝑥. Grouping the 𝑥 terms gives us 23𝑥 minus positive 18𝑥. 23𝑥 minus 18𝑥 is equal to five 𝑥. Simplifying or grouping the 𝑦 terms gives us negative 24𝑦 minus 19𝑦. This is equal to negative 43𝑦.

Therefore, the answer when we subtract 19𝑦 plus 18𝑥 from 23𝑥 minus 24𝑦 is equal to five 𝑥 minus 43𝑦.