a)x+400=500-100
x+400=400
x=400-400
x=0
b)x+10=50
x=50-10
x=40
x + 400 = 500 - 100
x + 400 = 400
x = 400 - 400
x = 0
x + 10 = 50
x = 50 -10
x = 40
x+400=500-100
x+400=400
x =400-400
x =0
x+10=50
x =50-10
x =40
tk mk nha
x + 400 = 500 - 100
x + 400 = 400
x = 400 - 400
x = 0
x + 10 = 50
x = 50 - 10
x = 40
x + 400=500-100
x + 400=400
x=400-400
x=0
x+10=50
x=50-10
x=40
Anh em đi thả cá chép đi!!
X+400=500-100
X+400=400
X=400-400
X=0
X+10=50
X=50-10
X=40
x + 400 = 500 - 100
x + 400 = 400
x = 400 - 400
x = 0
x + 10 = 50
x = 50 - 10
x = 40
Happy new year ! Chúc bn luôn vui vẻ nhé !
x + 400 = 500 - 100
x + 400 = 400
x = 400 - 400
x = 0
x + 10 = 50
x = 50 - 40
x = 10
k mk nha ^_^
x + 400 = 500 - 100
x + 400 = 400
x = 400 - 400
x = 0
x+400=500-100
=> x+400=400
=> x=0
x+10=50
=>x=50-10
=> x=40