(-x)-(2x)=-7

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Solution for (-x)-(2x)=-7 equation: 



(-x)-(2x)=-7

We move all terms to the left:

(-x)-(2x)-(-7)=0

We add all the numbers together, and all the variables

(-1x)-2x-(-7)=0

We add all the numbers together, and all the variables

-2x+(-1x)+7=0

We get rid of parentheses

-2x-1x+7=0

We add all the numbers together, and all the variables

-3x+7=0

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

-3x=-7

x=-7/-3

x=2+1/3

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