4(7+r)=8

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Solution for 4(7+r)=8 equation: 



4(7+r)=8

We move all terms to the left:

4(7+r)-(8)=0

We add all the numbers together, and all the variables

4(r+7)-8=0

We multiply parentheses

4r+28-8=0

We add all the numbers together, and all the variables

4r+20=0

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

4r=-20

r=-20/4

r=-5

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