Solve for d
d=12
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6d+6-2d=54
Use the distributive property to multiply 6 by d+1.
4d+6=54
Combine 6d and -2d to get 4d.
4d=54-6
Subtract 6 from both sides.
4d=48
Subtract 6 from 54 to get 48.
d=\frac{48}{4}
Divide both sides by 4.
d=12
Divide 48 by 4 to get 12.
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