-210=-6(7+7x)

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Solution for -210=-6(7+7x) equation: 



-210=-6(7+7x)

We move all terms to the left:

-210-(-6(7+7x))=0

We add all the numbers together, and all the variables

-(-6(7x+7))-210=0



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

-6(7x+7)

We multiply parentheses

-42x-42

Back to the equation:

-(-42x-42)



We get rid of parentheses

42x+42-210=0

We add all the numbers together, and all the variables

42x-168=0

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

42x=168

x=168/42

x=4

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