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

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



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

We move all terms to the left:

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



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

(3x-10)*7

We multiply parentheses

21x-70

Back to the equation:

-(21x-70)



We get rid of parentheses

x-21x+70-10=0

We add all the numbers together, and all the variables

-20x+60=0

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

-20x=-60

x=-60/-20

x=+3

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