Question

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

Answer 1

Answer:

This expression is not equivalent to -9.

Step-by-step 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.