-1230=-10(-7x-3)

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Solution for -1230=-10(-7x-3) equation: 



-1230=-10(-7x-3)

We move all terms to the left:

-1230-(-10(-7x-3))=0



We calculate terms in parentheses: -(-10(-7x-3)), so:

-10(-7x-3)

We multiply parentheses

70x+30

Back to the equation:

-(70x+30)



We get rid of parentheses

-70x-30-1230=0

We add all the numbers together, and all the variables

-70x-1260=0

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

-70x=1260

x=1260/-70

x=-18

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