(6f+3)+(3f+6)=180

Solution for (6f+3)+(3f+6)=180 equation:

Simplifying
(6f + 3) + (3f + 6) = 180

Reorder the terms:
(3 + 6f) + (3f + 6) = 180

Remove parenthesis around (3 + 6f)
3 + 6f + (3f + 6) = 180

Reorder the terms:
3 + 6f + (6 + 3f) = 180

Remove parenthesis around (6 + 3f)
3 + 6f + 6 + 3f = 180

Reorder the terms:
3 + 6 + 6f + 3f = 180

Combine like terms: 3 + 6 = 9
9 + 6f + 3f = 180

Combine like terms: 6f + 3f = 9f
9 + 9f = 180

Solving
9 + 9f = 180

Solving for variable 'f'.

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

Add '-9' to each side of the equation.
9 + -9 + 9f = 180 + -9

Combine like terms: 9 + -9 = 0
0 + 9f = 180 + -9
9f = 180 + -9

Combine like terms: 180 + -9 = 171
9f = 171

Divide each side by '9'.
f = 19

Simplifying
f = 19