-20=-x+7x+10

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Solution for -20=-x+7x+10 equation: 



-20=-x+7x+10

We move all terms to the left:

-20-(-x+7x+10)=0

We add all the numbers together, and all the variables

-(6x+10)-20=0

We get rid of parentheses

-6x-10-20=0

We add all the numbers together, and all the variables

-6x-30=0

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

-6x=30

x=30/-6

x=-5

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