7f+20=-20+9f

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Solution for 7f+20=-20+9f equation:


Simplifying
7f + 20 = -20 + 9f

Reorder the terms:
20 + 7f = -20 + 9f

Solving
20 + 7f = -20 + 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.
20 + 7f + -9f = -20 + 9f + -9f

Combine like terms: 7f + -9f = -2f
20 + -2f = -20 + 9f + -9f

Combine like terms: 9f + -9f = 0
20 + -2f = -20 + 0
20 + -2f = -20

Add '-20' to each side of the equation.
20 + -20 + -2f = -20 + -20

Combine like terms: 20 + -20 = 0
0 + -2f = -20 + -20
-2f = -20 + -20

Combine like terms: -20 + -20 = -40
-2f = -40

Divide each side by '-2'.
f = 20

Simplifying
f = 20

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