Question

[Pham Trong Bach]

Tìm X:

a) X x 2 = 2 x 10

b) 47 – X = 28 : 4

Answer 1

[Cao Minh Tâm]

a) X x 2 = 2 x 10

X x 2 = 20

X = 20 : 2

X = 10

b) 47 – X = 28 : 4

47 – X = 7

X = 47 – 7

X = 40