-7+x+3x=5

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



-7+x+3x=5

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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