Question

(1) resolva as equações abaixo (a) ×-3=9 (b)4×-9=1-2× (c)×+5=20-4× (d)9×-4×+10=7×-30​

Answer 1

a) X= 12

b) X= 5/3

C) X= 3

D) X= 20

Answer 2

Resposta:

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