4(2r+2)=40

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Solution for 4(2r+2)=40 equation: 



4(2r+2)=40

We move all terms to the left:

4(2r+2)-(40)=0

We multiply parentheses

8r+8-40=0

We add all the numbers together, and all the variables

8r-32=0

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

8r=32

r=32/8

r=4

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