-3f+3(5s+2)=126

Solution for -3f+3(5s+2)=126 equation:

Simplifying
-3f + 3(5s + 2) = 126

Reorder the terms:
-3f + 3(2 + 5s) = 126
-3f + (2 * 3 + 5s * 3) = 126
-3f + (6 + 15s) = 126

Reorder the terms:
6 + -3f + 15s = 126

Solving
6 + -3f + 15s = 126

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 + -3f + -6 + 15s = 126 + -6

Reorder the terms:
6 + -6 + -3f + 15s = 126 + -6

Combine like terms: 6 + -6 = 0
0 + -3f + 15s = 126 + -6
-3f + 15s = 126 + -6

Combine like terms: 126 + -6 = 120
-3f + 15s = 120

Add '-15s' to each side of the equation.
-3f + 15s + -15s = 120 + -15s

Combine like terms: 15s + -15s = 0
-3f + 0 = 120 + -15s
-3f = 120 + -15s

Divide each side by '-3'.
f = -40 + 5s

Simplifying
f = -40 + 5s