Solve for k
k=3
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10k-15-\left(k+3\right)=9
Use the distributive property to multiply 5 by 2k-3.
10k-15-k-3=9
To find the opposite of k+3, find the opposite of each term.
9k-15-3=9
Combine 10k and -k to get 9k.
9k-18=9
Subtract 3 from -15 to get -18.
9k=9+18
Add 18 to both sides.
9k=27
Add 9 and 18 to get 27.
k=\frac{27}{9}
Divide both sides by 9.
k=3
Divide 27 by 9 to get 3.
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