(4f+5)+(5f+40)=180

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Solution for (4f+5)+(5f+40)=180 equation:


Simplifying
(4f + 5) + (5f + 40) = 180

Reorder the terms:
(5 + 4f) + (5f + 40) = 180

Remove parenthesis around (5 + 4f)
5 + 4f + (5f + 40) = 180

Reorder the terms:
5 + 4f + (40 + 5f) = 180

Remove parenthesis around (40 + 5f)
5 + 4f + 40 + 5f = 180

Reorder the terms:
5 + 40 + 4f + 5f = 180

Combine like terms: 5 + 40 = 45
45 + 4f + 5f = 180

Combine like terms: 4f + 5f = 9f
45 + 9f = 180

Solving
45 + 9f = 180

Solving for variable 'f'.

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

Add '-45' to each side of the equation.
45 + -45 + 9f = 180 + -45

Combine like terms: 45 + -45 = 0
0 + 9f = 180 + -45
9f = 180 + -45

Combine like terms: 180 + -45 = 135
9f = 135

Divide each side by '9'.
f = 15

Simplifying
f = 15

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