Solve for d
d\leq 2
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887-7d\geq 873
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
-7d\geq 873-887
Subtract 887 from both sides.
-7d\geq -14
Subtract 887 from 873 to get -14.
d\leq \frac{-14}{-7}
Divide both sides by -7. Since -7 is negative, the inequality direction is changed.
d\leq 2
Divide -14 by -7 to get 2.
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