-(10-3x)=7x+30

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Solution for -(10-3x)=7x+30 equation: 



-(10-3x)=7x+30

We move all terms to the left:

-(10-3x)-(7x+30)=0

We add all the numbers together, and all the variables

-(-3x+10)-(7x+30)=0

We get rid of parentheses

3x-7x-10-30=0

We add all the numbers together, and all the variables

-4x-40=0

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

-4x=40

x=40/-4

x=-10

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