-3(2+f)=-15

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Solution for -3(2+f)=-15 equation: 



-3(2+f)=-15

We move all terms to the left:

-3(2+f)-(-15)=0

We add all the numbers together, and all the variables

-3(f+2)-(-15)=0

We add all the numbers together, and all the variables

-3(f+2)+15=0

We multiply parentheses

-3f-6+15=0

We add all the numbers together, and all the variables

-3f+9=0

We move all terms containing f to the left, all other terms to the right

-3f=-9

f=-9/-3

f=+3

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