3(x-1)-x=4

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Solution for 3(x-1)-x=4 equation: 



3(x-1)-x=4

We move all terms to the left:

3(x-1)-x-(4)=0

We add all the numbers together, and all the variables

-1x+3(x-1)-4=0

We multiply parentheses

-1x+3x-3-4=0

We add all the numbers together, and all the variables

2x-7=0

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

2x=7

x=7/2

x=3+1/2

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