10=5(7r+3)-5(r-5)

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Solution for 10=5(7r+3)-5(r-5) equation:



10=5(7r+3)-5(r-5)
We move all terms to the left:
10-(5(7r+3)-5(r-5))=0
We calculate terms in parentheses: -(5(7r+3)-5(r-5)), so:
5(7r+3)-5(r-5)
We multiply parentheses
35r-5r+15+25
We add all the numbers together, and all the variables
30r+40
Back to the equation:
-(30r+40)
We get rid of parentheses
-30r-40+10=0
We add all the numbers together, and all the variables
-30r-30=0
We move all terms containing r to the left, all other terms to the right
-30r=30
r=30/-30
r=-1

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