11. In Triangle ABC, D and E are points on AB and AC respectively such that DE || BC. If AD = 6x - 7, DB = 4x - 3, AE = 3x - 3 and EC = 2x-1, find x

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When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.