12=4+3f-7

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Solution for 12=4+3f-7 equation:


Simplifying
12 = 4 + 3f + -7

Reorder the terms:
12 = 4 + -7 + 3f

Combine like terms: 4 + -7 = -3
12 = -3 + 3f

Solving
12 = -3 + 3f

Solving for variable 'f'.

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

Add '-3f' to each side of the equation.
12 + -3f = -3 + 3f + -3f

Combine like terms: 3f + -3f = 0
12 + -3f = -3 + 0
12 + -3f = -3

Add '-12' to each side of the equation.
12 + -12 + -3f = -3 + -12

Combine like terms: 12 + -12 = 0
0 + -3f = -3 + -12
-3f = -3 + -12

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

Divide each side by '-3'.
f = 5

Simplifying
f = 5

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