Rewrite the equation as d+13⋅7=89.
Combine 13 and 7.
Move all terms not containing d to the right side of the equation.
Subtract 73 from both sides of the equation.
To write -73 as a fraction with a common denominator, multiply by 33.
Write each expression with a common denominator of 9, by multiplying each by an appropriate factor of 1.
Multiply 73 and 33.
Multiply 3 by 3.
Combine the numerators over the common denominator.
Simplify the numerator.
Multiply -7 by 3.
Subtract 21 from 8.
Move the negative in front of the fraction.
The result can be shown in multiple forms.
Mixed Number Form:
Solve for d 8/9=d+1/3*7