-x-3(1-3x)=-21+2x

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Solution for -x-3(1-3x)=-21+2x equation: 



-x-3(1-3x)=-21+2x

We move all terms to the left:

-x-3(1-3x)-(-21+2x)=0

We add all the numbers together, and all the variables

-x-3(-3x+1)-(2x-21)=0

We add all the numbers together, and all the variables

-1x-3(-3x+1)-(2x-21)=0

We multiply parentheses

-1x+9x-(2x-21)-3=0

We get rid of parentheses

-1x+9x-2x+21-3=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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