Solve for y
y = \frac{22}{5} = 4\frac{2}{5} = 4.4
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-\frac{2}{5}+y=4
Swap sides so that all variable terms are on the left hand side.
y=4+\frac{2}{5}
Add \frac{2}{5} to both sides.
y=\frac{20}{5}+\frac{2}{5}
Convert 4 to fraction \frac{20}{5}.
y=\frac{20+2}{5}
Since \frac{20}{5} and \frac{2}{5} have the same denominator, add them by adding their numerators.
y=\frac{22}{5}
Add 20 and 2 to get 22.
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