1) a) x/7 + 1/2 = -13/14 b) -x/6 – 1/3 = 1/2

1 bình luận về “1) a) x/7 + 1/2 = -13/14 b) -x/6 – 1/3 = 1/2”

1. Lời giải:

   a)x/7+1/2=-13/14

   =>x/7=-13/14-1/2

   =>x/7=-10/7

   =>x=-10/7 .7

   =>x=-10

   b)-x/6-1/3=1/2

   =>-x/6=1/2+1/3

   =>-x/6=5/6

   =>-x=5/6.6

   =>-x=5

   =>x=-5

    

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