9f-7=2f-28

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Solution for 9f-7=2f-28 equation:


Simplifying
9f + -7 = 2f + -28

Reorder the terms:
-7 + 9f = 2f + -28

Reorder the terms:
-7 + 9f = -28 + 2f

Solving
-7 + 9f = -28 + 2f

Solving for variable 'f'.

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

Add '-2f' to each side of the equation.
-7 + 9f + -2f = -28 + 2f + -2f

Combine like terms: 9f + -2f = 7f
-7 + 7f = -28 + 2f + -2f

Combine like terms: 2f + -2f = 0
-7 + 7f = -28 + 0
-7 + 7f = -28

Add '7' to each side of the equation.
-7 + 7 + 7f = -28 + 7

Combine like terms: -7 + 7 = 0
0 + 7f = -28 + 7
7f = -28 + 7

Combine like terms: -28 + 7 = -21
7f = -21

Divide each side by '7'.
f = -3

Simplifying
f = -3

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