3(f-57)=45

Solution for 3(f-57)=45 equation:

Simplifying
3(f + -57) = 45

Reorder the terms:
3(-57 + f) = 45
(-57 * 3 + f * 3) = 45
(-171 + 3f) = 45

Solving
-171 + 3f = 45

Solving for variable 'f'.

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

Add '171' to each side of the equation.
-171 + 171 + 3f = 45 + 171

Combine like terms: -171 + 171 = 0
0 + 3f = 45 + 171
3f = 45 + 171

Combine like terms: 45 + 171 = 216
3f = 216

Divide each side by '3'.
f = 72

Simplifying
f = 72