-10=r/4-20

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Solution for -10=r/4-20 equation: 



-10=r/4-20

We move all terms to the left:

-10-(r/4-20)=0

We get rid of parentheses

-r/4+20-10=0

We multiply all the terms by the denominator


-r+20*4-10*4=0

We add all the numbers together, and all the variables

-1r+40=0

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

-r=-40

r=-40/-1

r=+40

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