Question

What’s the answer for 3(2x+5)+2x=7?

Answer 1

Answer: x = 5.5 or 5 + 1/2

Explanation:

3(2x-5)-2x=7

We move all terms to the left:

3(2x-5)-2x-(7)=0

We add all the numbers together, and all the variables

-2x+3(2x-5)-7=0

We multiply parentheses

-2x+6x-15-7=0

We add all the numbers together, and all the variables

4x-22=0

We move all terms containing x to the left, all other terms to the right

4x=22

x=22/4

x=5+1/2

Answer 2

x=5+1/2

Explanation:

3(2x-5)-2x=7

We move all terms to the left:

3(2x-5)-2x-(7)=0

We add all the numbers together, and all the variables

-2x+3(2x-5)-7=0

We multiply parentheses

-2x+6x-15-7=0

We add all the numbers together, and all the variables

4x-22=0

We move all terms containing x to the left, all other terms to the right

4x=22

x=22/4

x=5+1/2