-18+4f+18f=20f+18

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Solution for -18+4f+18f=20f+18 equation:


Simplifying
-18 + 4f + 18f = 20f + 18

Combine like terms: 4f + 18f = 22f
-18 + 22f = 20f + 18

Reorder the terms:
-18 + 22f = 18 + 20f

Solving
-18 + 22f = 18 + 20f

Solving for variable 'f'.

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

Add '-20f' to each side of the equation.
-18 + 22f + -20f = 18 + 20f + -20f

Combine like terms: 22f + -20f = 2f
-18 + 2f = 18 + 20f + -20f

Combine like terms: 20f + -20f = 0
-18 + 2f = 18 + 0
-18 + 2f = 18

Add '18' to each side of the equation.
-18 + 18 + 2f = 18 + 18

Combine like terms: -18 + 18 = 0
0 + 2f = 18 + 18
2f = 18 + 18

Combine like terms: 18 + 18 = 36
2f = 36

Divide each side by '2'.
f = 18

Simplifying
f = 18

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