f+42+f+18+f=180

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Solution for f+42+f+18+f=180 equation:



f+42+f+18+f=180
We move all terms to the left:
f+42+f+18+f-(180)=0
We add all the numbers together, and all the variables
3f-120=0
We move all terms containing f to the left, all other terms to the right
3f=120
f=120/3
f=40

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