Question

An expression is simplified below. Justify each step of the process

by naming the property that was used or by writing "combine like
terms. ." I will bold the part that changed!
27 + 3(2x + 6) + 2x This is the starting expression
27 + 6x + 18 + 2x
3.
27 + 18 + 6x + 2x
4.
(27 + 18) + (6x + 2x) 5.
45+ (6x + 2x)
6.
45 + 8x
7.

Answer 1

Explanation:

you started by expanding the bracket 3(2x+6) became 6x+18.\

Then you rearranged the equation so like terms were together.

You put brackets around the like terms so (27+18)+(6x+2x)

You added the first like terms (27+18)= 45

then you added the second like terms (6x+2x)= 8x