Solve for d
d=4
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12d-7=41
Swap sides so that all variable terms are on the left hand side.
12d=41+7
Add 7 to both sides.
12d=48
Add 41 and 7 to get 48.
d=\frac{48}{12}
Divide both sides by 12.
d=4
Divide 48 by 12 to get 4.
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