4r+8=36

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Solution for 4r+8=36 equation: 



4r+8=36

We move all terms to the left:

4r+8-(36)=0

We add all the numbers together, and all the variables

4r-28=0

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

4r=28

r=28/4

r=7

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