Question

Tìm x:

42x= 39 . 252 - 37 . 252

Answer 1

42.x =252.( 39 - 37 )

42.x =252.2 = 504

\(\Rightarrow\)x = 504 : 42 = 12

Vậy x = 12

Answer 2

42x=252.(39-37)

  42x     =252.2

   42x     =504

x=504:42=12

vậy x=12