120=9f+90

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Solution for 120=9f+90 equation:


Simplifying
120 = 9f + 90

Reorder the terms:
120 = 90 + 9f

Solving
120 = 90 + 9f

Solving for variable 'f'.

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

Add '-9f' to each side of the equation.
120 + -9f = 90 + 9f + -9f

Combine like terms: 9f + -9f = 0
120 + -9f = 90 + 0
120 + -9f = 90

Add '-120' to each side of the equation.
120 + -120 + -9f = 90 + -120

Combine like terms: 120 + -120 = 0
0 + -9f = 90 + -120
-9f = 90 + -120

Combine like terms: 90 + -120 = -30
-9f = -30

Divide each side by '-9'.
f = 3.333333333

Simplifying
f = 3.333333333

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