(2r+4)+(r+5)=90

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Solution for (2r+4)+(r+5)=90 equation:



(2r+4)+(r+5)=90
We move all terms to the left:
(2r+4)+(r+5)-(90)=0
We get rid of parentheses
2r+r+4+5-90=0
We add all the numbers together, and all the variables
3r-81=0
We move all terms containing r to the left, all other terms to the right
3r=81
r=81/3
r=27

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