x + 200 = 300 +,400
x + 200 = 700
x = 700 - 200
x = 500
tk mk nha bn
x + 200 = 300 + 400
x + 200 = 700
x = 700 - 200
x = 500
x+200=700
x =700-200
x =500
vậy x = 500
\(x+200=300+400\)
\(x+200=700\)
\(x=700-200\)
\(x=500\)
x+200=300+400
x+200=700
x=700-200
x=500
x + 200 = 300 + 400
x + 200 = 700
x = 700 - 200
x = 500
x+200=300+4000
x =700-200
x =500
X+200=300+400
X+200=700
X=700-200
X=500
x + 200 = 300 + 400
x + 200 = 700
x = 700 - 200
x = 500
k mk nha
x + 200 = 700
=> x = 700 - 200
=>x = 500