3r+3r=7(4r+8)-5(5r+4)

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Solution for 3r+3r=7(4r+8)-5(5r+4) equation:



3r+3r=7(4r+8)-5(5r+4)
We move all terms to the left:
3r+3r-(7(4r+8)-5(5r+4))=0
We add all the numbers together, and all the variables
6r-(7(4r+8)-5(5r+4))=0
We calculate terms in parentheses: -(7(4r+8)-5(5r+4)), so:
7(4r+8)-5(5r+4)
We multiply parentheses
28r-25r+56-20
We add all the numbers together, and all the variables
3r+36
Back to the equation:
-(3r+36)
We get rid of parentheses
6r-3r-36=0
We add all the numbers together, and all the variables
3r-36=0
We move all terms containing r to the left, all other terms to the right
3r=36
r=36/3
r=12

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