7(-3-6r)+3r=10-8r

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Solution for 7(-3-6r)+3r=10-8r equation: 



7(-3-6r)+3r=10-8r

We move all terms to the left:

7(-3-6r)+3r-(10-8r)=0

We add all the numbers together, and all the variables

7(-6r-3)+3r-(-8r+10)=0

We add all the numbers together, and all the variables

3r+7(-6r-3)-(-8r+10)=0

We multiply parentheses

3r-42r-(-8r+10)-21=0

We get rid of parentheses

3r-42r+8r-10-21=0

We add all the numbers together, and all the variables

-31r-31=0

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

-31r=31

r=31/-31

r=-1

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