3x-15=7-8x

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Solution for 3x-15=7-8x equation: 



3x-15=7-8x

We move all terms to the left:

3x-15-(7-8x)=0

We add all the numbers together, and all the variables

3x-(-8x+7)-15=0

We get rid of parentheses

3x+8x-7-15=0

We add all the numbers together, and all the variables

11x-22=0

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

11x=22

x=22/11

x=2

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