1+3f=5f-9

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Solution for 1+3f=5f-9 equation: 


Simplifying
1 + 3f = 5f + -9

Reorder the terms:
1 + 3f = -9 + 5f

Solving
1 + 3f = -9 + 5f

Solving for variable 'f'.

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

Add '-5f' to each side of the equation.
1 + 3f + -5f = -9 + 5f + -5f

Combine like terms: 3f + -5f = -2f
1 + -2f = -9 + 5f + -5f

Combine like terms: 5f + -5f = 0
1 + -2f = -9 + 0
1 + -2f = -9

Add '-1' to each side of the equation.
1 + -1 + -2f = -9 + -1

Combine like terms: 1 + -1 = 0
0 + -2f = -9 + -1
-2f = -9 + -1

Combine like terms: -9 + -1 = -10
-2f = -10

Divide each side by '-2'.
f = 5

Simplifying
f = 5

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