15-f=5+f

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Solution for 15-f=5+f equation:


Simplifying
15 + -1f = 5 + f

Solving
15 + -1f = 5 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
15 + -1f + -1f = 5 + f + -1f

Combine like terms: -1f + -1f = -2f
15 + -2f = 5 + f + -1f

Combine like terms: f + -1f = 0
15 + -2f = 5 + 0
15 + -2f = 5

Add '-15' to each side of the equation.
15 + -15 + -2f = 5 + -15

Combine like terms: 15 + -15 = 0
0 + -2f = 5 + -15
-2f = 5 + -15

Combine like terms: 5 + -15 = -10
-2f = -10

Divide each side by '-2'.
f = 5

Simplifying
f = 5

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