y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123
y = 453
y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123
y = 453
y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123
y = 453
y +123 = 456 + 120
y +123 = 576
y = 576 +123
y = 453
Vậy: y = 453
y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123 = 453
Vậy y = 453
K mk nha
Hứa sẽ k lại bạn nhé
Mk nhanh nha
y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123
y = 453
y + 123 = 456 + 120
y + 123 = 576
y = 576 - 123
y = 453
mink nhanh nhat t mink nha
y+123=456+120
y+123=576
y=576-123
y=453
y+123=456+120
y+123=576
y=576-123
y=453