3f+4=8f+9

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Solution for 3f+4=8f+9 equation:


Simplifying
3f + 4 = 8f + 9

Reorder the terms:
4 + 3f = 8f + 9

Reorder the terms:
4 + 3f = 9 + 8f

Solving
4 + 3f = 9 + 8f

Solving for variable 'f'.

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

Add '-8f' to each side of the equation.
4 + 3f + -8f = 9 + 8f + -8f

Combine like terms: 3f + -8f = -5f
4 + -5f = 9 + 8f + -8f

Combine like terms: 8f + -8f = 0
4 + -5f = 9 + 0
4 + -5f = 9

Add '-4' to each side of the equation.
4 + -4 + -5f = 9 + -4

Combine like terms: 4 + -4 = 0
0 + -5f = 9 + -4
-5f = 9 + -4

Combine like terms: 9 + -4 = 5
-5f = 5

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

Simplifying
f = -1

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