30-x=-3(6x+7)

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Solution for 30-x=-3(6x+7) equation: 



30-x=-3(6x+7)

We move all terms to the left:

30-x-(-3(6x+7))=0

We add all the numbers together, and all the variables

-1x-(-3(6x+7))+30=0



We calculate terms in parentheses: -(-3(6x+7)), so:

-3(6x+7)

We multiply parentheses

-18x-21

Back to the equation:

-(-18x-21)



We get rid of parentheses

-1x+18x+21+30=0

We add all the numbers together, and all the variables

17x+51=0

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

17x=-51

x=-51/17

x=-3

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