\(\left(2x-5\right)\times12=84\\ =>2x-5=84:12\\ =>2x-5=7\\ =>2x=7+5\\ =>2x=12\\ =>x=12:2\\ =>x=6\)
\(\left(2x-5\right)
.
12=84\)
\(2x-5\) \(=84
:
12\)
\(2x-5\) \(=7\)
\(2x\) \(=7+5\)
\(2x\) \(=12\)
\(x\) \(=12
:
2\)
\(x\) \(=6\)
(2x - 5).12 = 84
2x - 5 = 84 : 12
2x - 5 = 7
2x = 7 + 5
2x = 12
x = 12 : 2
x = 6
Vậy x = 6
\(\left(2x-5\right).12=84\)
\(2x-5=7\)
\(2x=12\)
Vậy \(x=6\)
`2x - 5 = 7`
`2x =12`
`x = 6`
