Question

Tìm x

a. x - 101 = 25

b.  x : 2 7 = 2 3

Answer 1

a. x - 101 = 25

X = 25 + 101

X =     126

b.  x : 2 7 = 2 3

  x = 2 3 × 2 7 x = 4 21