\(x+456=798\times2\)
\(x+456=1596\)
\(x=1596-456\)
\(x=1140\)
Vậy \(x=1140\)
x + 456 = 798 . 2
x + 546 = 1596
x = 1596 - 546
x = 1050
x + 456 = 789.2
=> x+456 = 1578
=> x = 1578 - 456
=> x = 1122 ( tmđk )
Vậy, x = 1122
Xin lỗi mik làm nhầm
x + 456 = 798 x 2
x + 456 = 1596
x = 1596 - 456
x = 1140