Question

Is 1 +4(3x-10)-12x equivalent to -9

Answer 1

This expression is not equivalent to -9.

Explanation:

Given the expression

`1+4(3x-10)-12x`

Use distributive property to eliminate the brackets:

`1+4\cdot 3x-4\cdot 10-12x\\ \\=1+12x-40-12x`

Use commutative property to rearrange the terms:

`1+12x-40-12x\\ \\=(12x-12x)+(1-40)\\ \\=0+(-39)\\ \\=-39`

Hence, this expression is not equivalent to -9.