10=-4r-r

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Solution for 10=-4r-r equation: 



10=-4r-r

We move all terms to the left:

10-(-4r-r)=0

We add all the numbers together, and all the variables

-(-5r)+10=0

We get rid of parentheses

5r+10=0

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

5r=-10

r=-10/5

r=-2

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