Question

tìm x

42x= 39.42-37.42

Answer 1

42x= 42.(39-37)

42x=42. 2

42x=84

=> x=2

Answer 2

\(42x=39.42-37.42\)

\(\Leftrightarrow42x=84\)

\(\Leftrightarrow x=2\)

Answer 3

\(42x=39.42-37.42\)

\(42x=42\left(19-37\right)\)

\(42x=42.2\)

\(\Leftrightarrow x=2\)

Answer 4

42x=1638-1554

42x=84

x=84/42

x=2

k nha

Answer 5

42x= 39.42-37.42

42x= (39-37).42

42x= 2.42

42x= 84

x     =84:42

x     =2

Vậy x =2  

Answer 6

42x=39.42-37.42

42x=42.(39-37)

42x=42x2

42x=84

    x=84:42

    x=2

Answer 7

42 * x = 39 * 42 - 37 * 42

42 * x = 1638 - 1554 

42 * x = 84

       x = 84 : 42

       x = 2

Answer 8

42x=39.42-37.42

42x=42(39-37)

42x=42.2

42x=84

x=2

Vậy x=2