3x-7=7x+15

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Solution for 3x-7=7x+15 equation: 



3x-7=7x+15

We move all terms to the left:

3x-7-(7x+15)=0

We get rid of parentheses

3x-7x-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

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