2r+4+90+r+5=180

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Solution for 2r+4+90+r+5=180 equation:



2r+4+90+r+5=180
We move all terms to the left:
2r+4+90+r+5-(180)=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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