-30=5(x-4)-7x

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Solution for -30=5(x-4)-7x equation: 



-30=5(x-4)-7x

We move all terms to the left:

-30-(5(x-4)-7x)=0



We calculate terms in parentheses: -(5(x-4)-7x), so:

5(x-4)-7x

We add all the numbers together, and all the variables

-7x+5(x-4)

We multiply parentheses

-7x+5x-20

We add all the numbers together, and all the variables

-2x-20

Back to the equation:

-(-2x-20)



We get rid of parentheses

2x+20-30=0

We add all the numbers together, and all the variables

2x-10=0

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

2x=10

x=10/2

x=5

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