Resposta:
a) x : -8 = - 6
x = - 8 × (- 6)
x = 48
b) x : 9 = - 7
x = 9 × (- 7)
x = - 63
c) x : (-3) = 12
x = - 3 × 12
x = - 36
d) x : (- 13) = 12
x = - 13 × 12
x = - 156
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Resposta:
a) x : -8 = - 6
x = - 8 × (- 6)
x = 48
b) x : 9 = - 7
x = 9 × (- 7)
x = - 63
c) x : (-3) = 12
x = - 3 × 12
x = - 36
d) x : (- 13) = 12
x = - 13 × 12
x = - 156