Solve for d
d=3
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3d+3=-2\left(d-9\right)
Use the distributive property to multiply 3 by d+1.
3d+3=-2d+18
Use the distributive property to multiply -2 by d-9.
3d+3+2d=18
Add 2d to both sides.
5d+3=18
Combine 3d and 2d to get 5d.
5d=18-3
Subtract 3 from both sides.
5d=15
Subtract 3 from 18 to get 15.
d=\frac{15}{5}
Divide both sides by 5.
d=3
Divide 15 by 5 to get 3.
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