-3(f+1)=3(f-1)

Solution for -3(f+1)=3(f-1) equation:

Simplifying
-3(f + 1) = 3(f + -1)

Reorder the terms:
-3(1 + f) = 3(f + -1)
(1 * -3 + f * -3) = 3(f + -1)
(-3 + -3f) = 3(f + -1)

Reorder the terms:
-3 + -3f = 3(-1 + f)
-3 + -3f = (-1 * 3 + f * 3)
-3 + -3f = (-3 + 3f)

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

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

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

Solving
-3f = 3f

Solving for variable 'f'.

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

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

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

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

Divide each side by '-6'.
f = 0

Simplifying
f = 0