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Question Number 102644 by otchereabdullai@gmail.com last updated on 10/Jul/20

	Answered by Rasheed.Sindhi last updated on 10/Jul/20

	$x : t r i c y c l e s, y : t a x i c a b s$ $x + y = 20$ $2 x + 4 y = 66$ $2 x + 2 y = 40$ $2 x + 4 y = 66$ $2 y = 26$ $y = 13$ $x = 20 - 13 = 7$
	Commented by otchereabdullai@gmail.com last updated on 10/Jul/20

	$thanks a lot sir! i appreciate your time$
	Answered by Rasheed.Sindhi last updated on 10/Jul/20

	$U s i n g o n l y s i n g l e v a r i a b l e .$ $t r i c y c l e s : x$ $t a x i c a b s : 20 - x$ $2 x + 4 (20 - x) = 66$ $x = 7 : t r i c y c l e s$ $20 - x = 20 - 7 = 13 : t a x i c a b s$
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