2+2r=10r-78

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Solution for 2+2r=10r-78 equation:



2+2r=10r-78
We move all terms to the left:
2+2r-(10r-78)=0
We get rid of parentheses
2r-10r+78+2=0
We add all the numbers together, and all the variables
-8r+80=0
We move all terms containing r to the left, all other terms to the right
-8r=-80
r=-80/-8
r=+10

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