차례대로 2/3,5/(1)x=6분의7 (2)x=8 (3)x=-7/(1)x=4 (2)x=-4 (3)x=-5/(1)x=4(2)x=-5(3)x=5(4)x=73/(1)x=4(2)x=6(3)x=-6/2/10,70,60,3,20/3/3/-2/2/-3/-1입니다
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