x+300=900
x=900-300
x=600
ai tk minh
minh tk lai
x + 300 = 600 + 300
=> x + 300 = 900
=> x = 900 - 300
=> x = 600
vậy x = 600
k mk nha
x + 300 = 600 + 300
x + 300 = 900
x = 900 - 300
x = 600 tk mk nha ~~!
x+300=600+300
x+300=900
x=900-300
x=600
x+300=600+300
x+300=900
x=900-300
x=600
tk mk mk tk lai ,tk mk nha ban than iu
\(x+300=600+300\)
\(x+300=900\)
\(x=900-300\)
\(x=600\)
tk ủng hộ nha
x + 300 = 600 + 300
x + 300 = 900
x = 900 - 300
x = 600
tk mk mk tk lại
x+300=600+300
x+300=900
x = 900-300
x = 600
tk cho mk nhé
x + 300 = 600 + 300
x + 300 = 900
x = 900 - 300
x = 600