4r+122=90

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Solution for 4r+122=90 equation: 



4r+122=90

We move all terms to the left:

4r+122-(90)=0

We add all the numbers together, and all the variables

4r+32=0

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

4r=-32

r=-32/4

r=-8

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