Solve for I
I=2
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8=I\times \frac{2}{0.5}
Variable I cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by I.
8=I\times \frac{20}{5}
Expand \frac{2}{0.5} by multiplying both numerator and the denominator by 10.
8=I\times 4
Divide 20 by 5 to get 4.
I\times 4=8
Swap sides so that all variable terms are on the left hand side.
I=\frac{8}{4}
Divide both sides by 4.
I=2
Divide 8 by 4 to get 2.
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