3(f-2)=-21

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Solution for 3(f-2)=-21 equation: 


Simplifying
3(f + -2) = -21

Reorder the terms:
3(-2 + f) = -21
(-2 * 3 + f * 3) = -21
(-6 + 3f) = -21

Solving
-6 + 3f = -21

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Add '6' to each side of the equation.
-6 + 6 + 3f = -21 + 6

Combine like terms: -6 + 6 = 0
0 + 3f = -21 + 6
3f = -21 + 6

Combine like terms: -21 + 6 = -15
3f = -15

Divide each side by '3'.
f = -5

Simplifying
f = -5

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