2x+3(x-5)=-x+21+3x

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Solution for 2x+3(x-5)=-x+21+3x equation: 



2x+3(x-5)=-x+21+3x

We move all terms to the left:

2x+3(x-5)-(-x+21+3x)=0

We add all the numbers together, and all the variables

2x+3(x-5)-(2x+21)=0

We multiply parentheses

2x+3x-(2x+21)-15=0

We get rid of parentheses

2x+3x-2x-21-15=0

We add all the numbers together, and all the variables

3x-36=0

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

3x=36

x=36/3

x=12

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