-2f-9+7f=20

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Solution for -2f-9+7f=20 equation:


Simplifying
-2f + -9 + 7f = 20

Reorder the terms:
-9 + -2f + 7f = 20

Combine like terms: -2f + 7f = 5f
-9 + 5f = 20

Solving
-9 + 5f = 20

Solving for variable 'f'.

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

Add '9' to each side of the equation.
-9 + 9 + 5f = 20 + 9

Combine like terms: -9 + 9 = 0
0 + 5f = 20 + 9
5f = 20 + 9

Combine like terms: 20 + 9 = 29
5f = 29

Divide each side by '5'.
f = 5.8

Simplifying
f = 5.8

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