2(x+1)-(x-1)=7

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Solution for 2(x+1)-(x-1)=7 equation: 



2(x+1)-(x-1)=7

We move all terms to the left:

2(x+1)-(x-1)-(7)=0

We multiply parentheses

2x-(x-1)+2-7=0

We get rid of parentheses

2x-x+1+2-7=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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