3x+5x-15=4x-7

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Solution for 3x+5x-15=4x-7 equation: 



3x+5x-15=4x-7

We move all terms to the left:

3x+5x-15-(4x-7)=0

We add all the numbers together, and all the variables

8x-(4x-7)-15=0

We get rid of parentheses

8x-4x+7-15=0

We add all the numbers together, and all the variables

4x-8=0

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

4x=8

x=8/4

x=2

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