x + 300 = 300 + 50
x + 300 = 350
x = 350 - 300
x = 50
ai k mk mk k lại ^_^
\(x+300=300+50\)
\(x+300=350\)
\(x=350-300\)
\(x=50\)
x + 300 = 300 + 50
x + 300 = 350
x = 350 - 300
x = 50
x+300=300+50
x+300=350
x=350-300
x=50
x + 300 = 300 +50
x + 300 = 350
x = 350 - 300
x = 50
k mk nha mk k bn rồi đi mà mk xin bn đó
x+300 = 300 + 50
x+300 = 800
x = 800 - 300
x = 500
x + 300= 300 + 50
x + 300= 350
x = 350 - 300
=> x = 50
x+ 300 = 300 + 50
x + 300 = 350
x = 350 - 300
x = 50