8r-4(r+5)=5(2r-4)-18

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Solution for 8r-4(r+5)=5(2r-4)-18 equation: 



8r-4(r+5)=5(2r-4)-18

We move all terms to the left:

8r-4(r+5)-(5(2r-4)-18)=0

We multiply parentheses

8r-4r-(5(2r-4)-18)-20=0



We calculate terms in parentheses: -(5(2r-4)-18), so:

5(2r-4)-18

We multiply parentheses

10r-20-18

We add all the numbers together, and all the variables

10r-38

Back to the equation:

-(10r-38)



We add all the numbers together, and all the variables

4r-(10r-38)-20=0

We get rid of parentheses

4r-10r+38-20=0

We add all the numbers together, and all the variables

-6r+18=0

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

-6r=-18

r=-18/-6

r=+3

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