-8=f-13

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Solution for -8=f-13 equation:


Simplifying
-8 = f + -13

Reorder the terms:
-8 = -13 + f

Solving
-8 = -13 + 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.
-8 + -1f = -13 + f + -1f

Combine like terms: f + -1f = 0
-8 + -1f = -13 + 0
-8 + -1f = -13

Add '8' to each side of the equation.
-8 + 8 + -1f = -13 + 8

Combine like terms: -8 + 8 = 0
0 + -1f = -13 + 8
-1f = -13 + 8

Combine like terms: -13 + 8 = -5
-1f = -5

Divide each side by '-1'.
f = 5

Simplifying
f = 5

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