3=-r/4+7

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Solution for 3=-r/4+7 equation: 



3=-r/4+7

We move all terms to the left:

3-(-r/4+7)=0

We get rid of parentheses

r/4-7+3=0

We multiply all the terms by the denominator


r-7*4+3*4=0

We add all the numbers together, and all the variables

r-16=0

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

r=16

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