2f+6+9=13

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Solution for 2f+6+9=13 equation: 


Simplifying
2f + 6 + 9 = 13

Reorder the terms:
6 + 9 + 2f = 13

Combine like terms: 6 + 9 = 15
15 + 2f = 13

Solving
15 + 2f = 13

Solving for variable 'f'.

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

Add '-15' to each side of the equation.
15 + -15 + 2f = 13 + -15

Combine like terms: 15 + -15 = 0
0 + 2f = 13 + -15
2f = 13 + -15

Combine like terms: 13 + -15 = -2
2f = -2

Divide each side by '2'.
f = -1

Simplifying
f = -1

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