8(10-r)=2r

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Solution for 8(10-r)=2r equation: 



8(10-r)=2r

We move all terms to the left:

8(10-r)-(2r)=0

We add all the numbers together, and all the variables

8(-1r+10)-2r=0

We add all the numbers together, and all the variables

-2r+8(-1r+10)=0

We multiply parentheses

-2r-8r+80=0

We add all the numbers together, and all the variables

-10r+80=0

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

-10r=-80

r=-80/-10

r=+8

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