86=-10(r-12)+16

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Solution for 86=-10(r-12)+16 equation:



86=-10(r-12)+16
We move all terms to the left:
86-(-10(r-12)+16)=0
We calculate terms in parentheses: -(-10(r-12)+16), so:
-10(r-12)+16
We multiply parentheses
-10r+120+16
We add all the numbers together, and all the variables
-10r+136
Back to the equation:
-(-10r+136)
We get rid of parentheses
10r-136+86=0
We add all the numbers together, and all the variables
10r-50=0
We move all terms containing r to the left, all other terms to the right
10r=50
r=50/10
r=5

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