x+100=900+100
x+100=1000
x=1000-100
x=900
x + 100 = 900 + 100
x + 100 = 1000
x = 1000 - 100
x = 9000
tk mk mk tk lại
x + 100 = 900 + 100
x + 100 = 1000
x = 1000 - 100
x = 900
x + 100 = 900 + 100
x + 100 = 1000
x = 1000 - 100
x = 900
Vậy x = 900
x + 100 = 900 + 100
x + 100 = 1000
x = 1000 - 100
x = 900
k m knha mina ~~!
x+100 = 900 + 100
= x + 100
Vậy x = 900
x+100=900+100
x=900+100-100
x=900
vậy x=900
tk mk nha!
x+100=1000
=>x=1000-100
=>x=900
vậy x=900
x+100=900+100
x+100=1000
x=1000-100
x=900