Asked by sarah

simply the expression

-4+2x+8
??
Answered by Cindy
2x+4
Answered by Damon
2x + 4
or
2(x+2)
Answered by sarah
but what happens to the 8?
Answered by Ms. Sue
8 - 4 = 4

Answered by sarah
ohh okay...so if i said 4x+1+(-3) it would be like 4x+1-3 then i would do:

3-1=2
so it would be 4x+2 ?
Answered by Ms. Sue
When you simplify, you combine like terms.

In your expression you have one unknown >> 2x.

You have two known numbers >> + 8 and - 4.

Please study Cindy's and Damon's answers. They both posted the correct answer.