12-3f+15=-13+7f

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Solution for 12-3f+15=-13+7f equation:


Simplifying
12 + -3f + 15 = -13 + 7f

Reorder the terms:
12 + 15 + -3f = -13 + 7f

Combine like terms: 12 + 15 = 27
27 + -3f = -13 + 7f

Solving
27 + -3f = -13 + 7f

Solving for variable 'f'.

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

Add '-7f' to each side of the equation.
27 + -3f + -7f = -13 + 7f + -7f

Combine like terms: -3f + -7f = -10f
27 + -10f = -13 + 7f + -7f

Combine like terms: 7f + -7f = 0
27 + -10f = -13 + 0
27 + -10f = -13

Add '-27' to each side of the equation.
27 + -27 + -10f = -13 + -27

Combine like terms: 27 + -27 = 0
0 + -10f = -13 + -27
-10f = -13 + -27

Combine like terms: -13 + -27 = -40
-10f = -40

Divide each side by '-10'.
f = 4

Simplifying
f = 4

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