Move all terms not containing y to the right side of the equation.
Subtract 18 from both sides of the equation.
Subtract 18 from 20.6.
Divide each term by -3.9 and simplify.
Divide each term in -3.9y=2.6 by -3.9.
Cancel the common factor of -3.9.
Divide 2.6 by -3.9.
Solve for y 18-3.9y=20.6