-3(7r+5)=-120

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Solution for -3(7r+5)=-120 equation: 



-3(7r+5)=-120

We move all terms to the left:

-3(7r+5)-(-120)=0

We add all the numbers together, and all the variables

-3(7r+5)+120=0

We multiply parentheses

-21r-15+120=0

We add all the numbers together, and all the variables

-21r+105=0

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

-21r=-105

r=-105/-21

r=+5

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