7(9r-10)=-7r

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Solution for 7(9r-10)=-7r equation: 



7(9r-10)=-7r

We move all terms to the left:

7(9r-10)-(-7r)=0

We multiply parentheses

63r-(-7r)-70=0

We get rid of parentheses

63r+7r-70=0

We add all the numbers together, and all the variables

70r-70=0

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

70r=70

r=70/70

r=1

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