Solve for h
h\leq -9
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1-h\geq 10
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
-h\geq 10-1
Subtract 1 from both sides.
-h\geq 9
Subtract 1 from 10 to get 9.
h\leq -9
Divide both sides by -1. Since -1 is negative, the inequality direction is changed.
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