# algebra

a ladder is against a building. The distance from the bottom of the building to the ladder is 9 feet less than the length of the ladder. How high up the side of the building is the top of the ladder if that distance is 2ft. less than the length of the ladder?

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1. Use the Pythagorean theorem and solve for x.

9^2 + (x-2)^2 = x^2

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