ta có: x + 630 = 586 + 632
<=> x+630 =1218
=> x = 1218 - 630=
=> x =588
x + 630 = 586 + 632
x + 630 = 1218
x = 1218 - 630
x = 588
x + 630 = 586 + 632
x + 630 = 1218
x = 1218 - 630
x = 588
X+630=586+532
=>X= (586+632)-630
=> X= 1218-630
=> X= 588
x + 630 = 586 + 632
x + 630 = 1218
x = 1218 - 630
x = 588