30=3(x-2)-7x

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Solution for 30=3(x-2)-7x equation: 



30=3(x-2)-7x

We move all terms to the left:

30-(3(x-2)-7x)=0



We calculate terms in parentheses: -(3(x-2)-7x), so:

3(x-2)-7x

We add all the numbers together, and all the variables

-7x+3(x-2)

We multiply parentheses

-7x+3x-6

We add all the numbers together, and all the variables

-4x-6

Back to the equation:

-(-4x-6)



We get rid of parentheses

4x+6+30=0

We add all the numbers together, and all the variables

4x+36=0

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

4x=-36

x=-36/4

x=-9

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