-13=30+f

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Solution for -13=30+f equation:


Simplifying
-13 = 30 + f

Solving
-13 = 30 + 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.
-13 + -1f = 30 + f + -1f

Combine like terms: f + -1f = 0
-13 + -1f = 30 + 0
-13 + -1f = 30

Add '13' to each side of the equation.
-13 + 13 + -1f = 30 + 13

Combine like terms: -13 + 13 = 0
0 + -1f = 30 + 13
-1f = 30 + 13

Combine like terms: 30 + 13 = 43
-1f = 43

Divide each side by '-1'.
f = -43

Simplifying
f = -43

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