Toán Lớp 6: 3
Tìm số nguyên x biết:
a) (-35).x = 280
b) 2.x +39 = -61
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Toán Lớp 6: 3
Tìm số nguyên x biết:
a) (-35).x = 280
b) 2.x +39 = -61
Comments ( 2 )
<=>x = 280 : (-35) = -8
Vậy x = -8
b)2 . x + 39 = -61
<=>2 . x = -61 – 39 = -100
<=>x = -100 : 2 = -50
Vậy x = -50
b)