3-f=15

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Solution for 3-f=15 equation:


Simplifying
3 + -1f = 15

Solving
3 + -1f = 15

Solving for variable 'f'.

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

Add '-3' to each side of the equation.
3 + -3 + -1f = 15 + -3

Combine like terms: 3 + -3 = 0
0 + -1f = 15 + -3
-1f = 15 + -3

Combine like terms: 15 + -3 = 12
-1f = 12

Divide each side by '-1'.
f = -12

Simplifying
f = -12

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