Verified Answer :

Simplifying
f + -6 = 3f + 1

Reorder the terms:
-6 + f = 3f + 1

Reorder the terms:
-6 + f = 1 + 3f

Solving
-6 + f = 1 + 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.
-6 + f + -3f = 1 + 3f + -3f

Combine like terms: f + -3f = -2f
-6 + -2f = 1 + 3f + -3f

Combine like terms: 3f + -3f = 0
-6 + -2f = 1 + 0
-6 + -2f = 1

Add '6' to each side of the equation.
-6 + 6 + -2f = 1 + 6

Combine like terms: -6 + 6 = 0
0 + -2f = 1 + 6
-2f = 1 + 6

Combine like terms: 1 + 6 = 7
-2f = 7

Divide each side by '-2'.
f = -3.5

Simplifying
f = -3.5

f-6=3f+1
-6-1=3f-f
-7=2f
-7รท2=f
-3.5=f