15=3x+7

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Solution for 15=3x+7 equation: 



15=3x+7

We move all terms to the left:

15-(3x+7)=0

We get rid of parentheses

-3x-7+15=0

We add all the numbers together, and all the variables

-3x+8=0

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

-3x=-8

x=-8/-3

x=2+2/3

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