2(-x)+x+3=2x+15

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Solution for 2(-x)+x+3=2x+15 equation: 



2(-x)+x+3=2x+15

We move all terms to the left:

2(-x)+x+3-(2x+15)=0

We add all the numbers together, and all the variables

2(-1x)+x-(2x+15)+3=0

We add all the numbers together, and all the variables

x+2(-1x)-(2x+15)+3=0

We multiply parentheses

x-2x-(2x+15)+3=0

We get rid of parentheses

x-2x-2x-15+3=0

We add all the numbers together, and all the variables

-3x-12=0

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

-3x=12

x=12/-3

x=-4

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