7x+15=3x-25

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Solution for 7x+15=3x-25 equation: 



7x+15=3x-25

We move all terms to the left:

7x+15-(3x-25)=0

We get rid of parentheses

7x-3x+25+15=0

We add all the numbers together, and all the variables

4x+40=0

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

4x=-40

x=-40/4

x=-10

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