10(r-9)=-90

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Solution for 10(r-9)=-90 equation: 



10(r-9)=-90

We move all terms to the left:

10(r-9)-(-90)=0

We add all the numbers together, and all the variables

10(r-9)+90=0

We multiply parentheses

10r-90+90=0

We add all the numbers together, and all the variables

10r=0

r=0/10

r=0

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