Add 8k and 2k.
Move all terms containing k to the left side of the equation.
Subtract k from both sides of the equation.
Subtract k from 10k.
Move all terms not containing k to the right side of the equation.
Subtract 5 from both sides of the equation.
Subtract 5 from 23.
Divide each term by 9 and simplify.
Divide each term in 9k=18 by 9.
Cancel the common factor of 9.
Cancel the common factor.
Divide k by 1.
Divide 18 by 9.
Solve for k 8k+5+2k=23+k