-9+(-3)+12+(-3)=f

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Solution for -9+(-3)+12+(-3)=f equation:


Simplifying
-9 + (-3) + 12 + (-3) = f
-9 + -3 + 12 + (-3) = f
-9 + -3 + 12 + -3 = f

Combine like terms: -9 + -3 = -12
-12 + 12 + -3 = f

Combine like terms: -12 + 12 = 0
0 + -3 = f
-3 = f

Solving
-3 = f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
-3 + -1f = f + -1f

Combine like terms: f + -1f = 0
-3 + -1f = 0

Add '3' to each side of the equation.
-3 + 3 + -1f = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1f = 0 + 3
-1f = 0 + 3

Combine like terms: 0 + 3 = 3
-1f = 3

Divide each side by '-1'.
f = -3

Simplifying
f = -3

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