How do you simplify 3(x+9)+2(4-x)?

1 Answer
Jul 29, 2016

Use the distributive property and combine like terms.

Explanation:

The distributive property states that a(b+c)=a⋅b+a⋅c. Let's use this to simplify the parentheses:

3(x+9)=3*x+3*9=3x+27

2(4-x)=2*4+2*-x=8-2x

We now have 3x+27+8-2x.

Next, we just combine like terms to get our answer, x+35.