3x-(-x+5)=7

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



3x-(-x+5)=7

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x-(-1x+5)-7=0

We get rid of parentheses

3x+1x-5-7=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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