Solve for k
k = \frac{28}{5} = 5\frac{3}{5} = 5.6
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5k-13=15
Swap sides so that all variable terms are on the left hand side.
5k=15+13
Add 13 to both sides.
5k=28
Add 15 and 13 to get 28.
k=\frac{28}{5}
Divide both sides by 5.
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