3f+7=4f-15

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Solution for 3f+7=4f-15 equation:


Simplifying
3f + 7 = 4f + -15

Reorder the terms:
7 + 3f = 4f + -15

Reorder the terms:
7 + 3f = -15 + 4f

Solving
7 + 3f = -15 + 4f

Solving for variable 'f'.

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

Add '-4f' to each side of the equation.
7 + 3f + -4f = -15 + 4f + -4f

Combine like terms: 3f + -4f = -1f
7 + -1f = -15 + 4f + -4f

Combine like terms: 4f + -4f = 0
7 + -1f = -15 + 0
7 + -1f = -15

Add '-7' to each side of the equation.
7 + -7 + -1f = -15 + -7

Combine like terms: 7 + -7 = 0
0 + -1f = -15 + -7
-1f = -15 + -7

Combine like terms: -15 + -7 = -22
-1f = -22

Divide each side by '-1'.
f = 22

Simplifying
f = 22

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