Solve for k
k=4
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k-2-\frac{1}{2}k=0
Subtract \frac{1}{2}k from both sides.
\frac{1}{2}k-2=0
Combine k and -\frac{1}{2}k to get \frac{1}{2}k.
\frac{1}{2}k=2
Add 2 to both sides. Anything plus zero gives itself.
k=2\times 2
Multiply both sides by 2, the reciprocal of \frac{1}{2}.
k=4
Multiply 2 and 2 to get 4.
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