121=r-76

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Solution for 121=r-76 equation: 



121=r-76

We move all terms to the left:

121-(r-76)=0

We get rid of parentheses

-r+76+121=0

We add all the numbers together, and all the variables

-1r+197=0

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

-r=-197

r=-197/-1

r=+197

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