5f+9=3f-15+7

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Solution for 5f+9=3f-15+7 equation:


Simplifying
5f + 9 = 3f + -15 + 7

Reorder the terms:
9 + 5f = 3f + -15 + 7

Reorder the terms:
9 + 5f = -15 + 7 + 3f

Combine like terms: -15 + 7 = -8
9 + 5f = -8 + 3f

Solving
9 + 5f = -8 + 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.
9 + 5f + -3f = -8 + 3f + -3f

Combine like terms: 5f + -3f = 2f
9 + 2f = -8 + 3f + -3f

Combine like terms: 3f + -3f = 0
9 + 2f = -8 + 0
9 + 2f = -8

Add '-9' to each side of the equation.
9 + -9 + 2f = -8 + -9

Combine like terms: 9 + -9 = 0
0 + 2f = -8 + -9
2f = -8 + -9

Combine like terms: -8 + -9 = -17
2f = -17

Divide each side by '2'.
f = -8.5

Simplifying
f = -8.5

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