a) 7,36 x 21,15 + 7,36 x (-121,15) b) x - 12/13 = 1/13 c) x-1/15 = 3/5 d) 7/8 + 7/8 : 1/8 - 1/2 e) -9/5 + 4/5 g) x-3/4 + 5/3 = 0 cuu minh voi !

a) 7,36 x 21,15 + 7,36 x (-121,15) b) x - 12/13 = 1/13 c) x-1/15 = 3/5 d) 7/8 + 7/8 : 1/8 - 1/2 e) -9/5 + 4/5 g) x-3/4 + 5/3 = 0 cuu minh voi !
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