Mathématiques

Question

Complete
a) 6x =1
b)-3x =1
c) x13=1
d)2/3x =1
e) x-5/7=1
f)2/-9x =1

2 Réponse


  • a) 6x =1

    x= 1/6


     b)-3x =1

    x= -1/3


     c) x13=1

    x = 1/13


     d)2/3x =1

    x = 1*3/2

    x =3/2


     e) x-5/7=1

    x= 1+5/7

    x= 7/7+5/7

    x = 12/7


     f)2/-9x =1

    x = 1 *-9/2

    x= -9/2

  • a) 6x =1
    x = 1/6

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

    c) x/13=1
    x = 1/13

    d)2/3x =1
    x = 1 * 3/2
    x = 3/2

    e) x-5/7=1
    x = 1 + 5/7
    x = 1 * 7 / 1 * 7 + 5/7
    x = 7/7 + 5/7
    x = 12/7

    f)2/-9x =1

    x = 1 * - 9/2
    x = - 9/2

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