X+2(x-1)=19

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Solution for X+2(x-1)=19 equation: 



X+2(X-1)=19

We move all terms to the left:

X+2(X-1)-(19)=0

We multiply parentheses

X+2X-2-19=0

We add all the numbers together, and all the variables

3X-21=0

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

3X=21

X=21/3

X=7

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