12.5-I=3.55

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Solution for 12.5-I=3.55 equation: 


Simplifying
12.5 + -1I = 3.55

Solving
12.5 + -1I = 3.55

Solving for variable 'I'.

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

Add '-12.5' to each side of the equation.
12.5 + -12.5 + -1I = 3.55 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + -1I = 3.55 + -12.5
-1I = 3.55 + -12.5

Combine like terms: 3.55 + -12.5 = -8.95
-1I = -8.95

Divide each side by '-1'.
I = 8.95

Simplifying
I = 8.95

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