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2+2k=-28-7k
Multiply both sides of the equation by 7.
2+2k+7k=-28
Add 7k to both sides.
2+9k=-28
Combine 2k and 7k to get 9k.
9k=-28-2
Subtract 2 from both sides.
9k=-30
Subtract 2 from -28 to get -30.
k=\frac{-30}{9}
Divide both sides by 9.
k=-\frac{10}{3}
Reduce the fraction \frac{-30}{9} to lowest terms by extracting and canceling out 3.