7=-r/4

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Solution for 7=-r/4 equation: 



7=-r/4

We move all terms to the left:

7-(-r/4)=0

We get rid of parentheses

r/4+7=0

We multiply all the terms by the denominator


r+7*4=0

We add all the numbers together, and all the variables

r+28=0

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

r=-28

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