-23=-9(3f+7)

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Solution for -23=-9(3f+7) equation:


Simplifying
-23 = -9(3f + 7)

Reorder the terms:
-23 = -9(7 + 3f)
-23 = (7 * -9 + 3f * -9)
-23 = (-63 + -27f)

Solving
-23 = -63 + -27f

Solving for variable 'f'.

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

Add '27f' to each side of the equation.
-23 + 27f = -63 + -27f + 27f

Combine like terms: -27f + 27f = 0
-23 + 27f = -63 + 0
-23 + 27f = -63

Add '23' to each side of the equation.
-23 + 23 + 27f = -63 + 23

Combine like terms: -23 + 23 = 0
0 + 27f = -63 + 23
27f = -63 + 23

Combine like terms: -63 + 23 = -40
27f = -40

Divide each side by '27'.
f = -1.481481481

Simplifying
f = -1.481481481

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