5[f-9]=-15

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Solution for 5[f-9]=-15 equation:


Simplifying
5[f + -9] = -15

Reorder the terms:
5[-9 + f] = -15
[-9 * 5 + f * 5] = -15
[-45 + 5f] = -15

Solving
-45 + 5f = -15

Solving for variable 'f'.

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

Add '45' to each side of the equation.
-45 + 45 + 5f = -15 + 45

Combine like terms: -45 + 45 = 0
0 + 5f = -15 + 45
5f = -15 + 45

Combine like terms: -15 + 45 = 30
5f = 30

Divide each side by '5'.
f = 6

Simplifying
f = 6

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