42x= 42.(39-37)
42x=42. 2
42x=84
=> x=2
\(42x=39.42-37.42\)
\(\Leftrightarrow42x=84\)
\(\Leftrightarrow x=2\)
\(42x=39.42-37.42\)
\(42x=42\left(19-37\right)\)
\(42x=42.2\)
\(\Leftrightarrow x=2\)
42x= 39.42-37.42
42x= (39-37).42
42x= 2.42
42x= 84
x =84:42
x =2
Vậy x =2
42x=39.42-37.42
42x=42.(39-37)
42x=42x2
42x=84
x=84:42
x=2
42 * x = 39 * 42 - 37 * 42
42 * x = 1638 - 1554
42 * x = 84
x = 84 : 42
x = 2
42x=39.42-37.42
42x=42(39-37)
42x=42.2
42x=84
x=2
Vậy x=2
