20-(7x-4)=30

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Solution for 20-(7x-4)=30 equation: 



20-(7x-4)=30

We move all terms to the left:

20-(7x-4)-(30)=0

We add all the numbers together, and all the variables

-(7x-4)-10=0

We get rid of parentheses

-7x+4-10=0

We add all the numbers together, and all the variables

-7x-6=0

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

-7x=6

x=6/-7

x=-6/7

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