Mathématiques

Question

AIDEZ MOI S'IL VOUS PLAIT

(-3)-5-(2+7)+(-3)

(-7)-(7-(-4))+(-5)-8

6-9+4

(-6)+9-4

6-9-4

(-6)-9-4

(-4)-8+12

2 Réponse

  • (-3)-5-(2+7)+(-3) =
    -3-5-(9)-3 =
    -3-5-9-3 = -20

    (-7)-(7-(-4))+(-5)-8 =
    -7-(7+4)-5-8 =
    -7-11-5-8 = -31

    -6+9-4 =
    -10+9 = -1

    6-9-4 =
    6-13 = -7

    (-6)-9-4 =
    -6-9-4 = -19

    (-4)-8+12 =
    -4-8+12 =
    -12+12 = 0


  • (-3)-5-(2+7)+(-3)
    = - 3 - 5 - 2 - 7 - 3
    = - 20

    (-7)-(7-(-4))+(-5)-8
    = - 7 - 7 + 4 - 5 - 8
    = - 7 - 7 - 5 - 8 + 4
    = - 27 + 4
    = - 23

    6-9+4
    = 6 - 9 + 4
    = 6 + 4 - 9
    = 10 - 9
    = 1

    (-6)+9-4
    = - 6 + 9 - 4
    = - 6 - 4 + 9
    = - 10 + 9
    = - 1

    6-9-4
    = 6 - 9 - 4
    = 6 - 13
    = - 7

    (-6)-9-4
    = - 6 - 9 - 4
    = - 19

    (-4)-8+12

    = - 4 - 8 + 12
    = - 12 + 12
    = 0

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