-4(r+9)=78

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Solution for -4(r+9)=78 equation: 



-4(r+9)=78

We move all terms to the left:

-4(r+9)-(78)=0

We multiply parentheses

-4r-36-78=0

We add all the numbers together, and all the variables

-4r-114=0

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

-4r=114

r=114/-4

r=-28+1/2

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