Question

What is the solution set for 6x-(3x+4)=x-40

Answer 1

x = 22

Explanation:

6x - (3x + 4) = x - 40

6x - 3x - 4 = x - 40 <distribute the negative

3x - 4 = x - 40 <combine like terms

-x -x <subtract x from both sides

2x - 4 = 40

+4 +4 <add 4 to both sides

2x = 44 <divide both sides by 2

x = 22

Answer 2

First, open the parentheses (make sure you distribute the '-':

6x - 3x - 4 = x - 40
3x - 4 = x - 40
2x = -36
x = -18

The solution set is {-18}