3(f+13)=18

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Solution for 3(f+13)=18 equation:



3(f+13)=18
We move all terms to the left:
3(f+13)-(18)=0
We multiply parentheses
3f+39-18=0
We add all the numbers together, and all the variables
3f+21=0
We move all terms containing f to the left, all other terms to the right
3f=-21
f=-21/3
f=-7

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