Apply the distributive property.
Multiply 2 by 7.4.
Multiply -4 by 2.
Move all terms containing d to the left side of the equation.
Add 8d to both sides of the equation.
Add -2.1d and 8d.
Move all terms not containing d to the right side of the equation.
Add 38.3 to both sides of the equation.
Add 14.8 and 38.3.
Divide each term by 5.9 and simplify.
Divide each term in 5.9d=53.1 by 5.9.
Cancel the common factor of 5.9.
Divide 53.1 by 5.9.
Solve for d -2.1d-38.3=2(7.4-4d)