6f-15=9f+3

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Solution for 6f-15=9f+3 equation:


Simplifying
6f + -15 = 9f + 3

Reorder the terms:
-15 + 6f = 9f + 3

Reorder the terms:
-15 + 6f = 3 + 9f

Solving
-15 + 6f = 3 + 9f

Solving for variable 'f'.

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

Add '-9f' to each side of the equation.
-15 + 6f + -9f = 3 + 9f + -9f

Combine like terms: 6f + -9f = -3f
-15 + -3f = 3 + 9f + -9f

Combine like terms: 9f + -9f = 0
-15 + -3f = 3 + 0
-15 + -3f = 3

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

Combine like terms: -15 + 15 = 0
0 + -3f = 3 + 15
-3f = 3 + 15

Combine like terms: 3 + 15 = 18
-3f = 18

Divide each side by '-3'.
f = -6

Simplifying
f = -6

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