Matematika

Pertanyaan

1.) -×+2 + ×-7 =
×-7 + -×+2 =
-×+2 - ×-7 =
×-7 - -×+2 =

1 Jawaban

  • 1. -×+2+×-7= -×+×+2-7 = -5
    ×-7+-×+2 = ×+-×-7+2 = -5
    -× +2 -×-7 = -2× -5
    ×-7--×+2 = ×-7+×+2 = 2×-5

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