4=2(3r+10)+8

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Solution for 4=2(3r+10)+8 equation: 



4=2(3r+10)+8

We move all terms to the left:

4-(2(3r+10)+8)=0



We calculate terms in parentheses: -(2(3r+10)+8), so:

2(3r+10)+8

We multiply parentheses

6r+20+8

We add all the numbers together, and all the variables

6r+28

Back to the equation:

-(6r+28)



We get rid of parentheses

-6r-28+4=0

We add all the numbers together, and all the variables

-6r-24=0

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

-6r=24

r=24/-6

r=-4

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