x-4=2(1-x)+15

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Solution for x-4=2(1-x)+15 equation: 



x-4=2(1-x)+15

We move all terms to the left:

x-4-(2(1-x)+15)=0

We add all the numbers together, and all the variables

x-(2(-1x+1)+15)-4=0



We calculate terms in parentheses: -(2(-1x+1)+15), so:

2(-1x+1)+15

We multiply parentheses

-2x+2+15

We add all the numbers together, and all the variables

-2x+17

Back to the equation:

-(-2x+17)



We get rid of parentheses

x+2x-17-4=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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