(-4+9)-(8f+9)=

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Solution for (-4+9)-(8f+9)= equation:


Simplifying
(-4 + 9) + -1(8f + 9) = 0

Combine like terms: -4 + 9 = 5
(5) + -1(8f + 9) = 0
5 + -1(8f + 9) = 0

Reorder the terms:
5 + -1(9 + 8f) = 0
5 + (9 * -1 + 8f * -1) = 0
5 + (-9 + -8f) = 0

Combine like terms: 5 + -9 = -4
-4 + -8f = 0

Solving
-4 + -8f = 0

Solving for variable 'f'.

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

Add '4' to each side of the equation.
-4 + 4 + -8f = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -8f = 0 + 4
-8f = 0 + 4

Combine like terms: 0 + 4 = 4
-8f = 4

Divide each side by '-8'.
f = -0.5

Simplifying
f = -0.5

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