x + 30 = 40 + 70
x + 30 = 110
x = 110 - 30
x = 80
x + 30 = 40 + 70
x + 30 = 110
x = 110 - 30
x = 80
k cho tớ nha bn
x+30=40+70
x+30=110
x=110-30
x=80
k mk nhé
x + 30 = 40 + 70
x + 30 = 110
x = 110 - 30
x = 80
x=80
k mình nhé, mình tk cho bạn rùi
x + 30 = 40 + 70
x + 30 = 110
x = 110 - 30
x = 80
x+30=40+70
x+30=110
x=110-30
x=80
TK mik nhe mik tk lai cho nha
\(x+30=40+70\)
\(x+30=110\)
\(x=110-30\)
\(x=80\)
x + 30 = 40 + 70
x + 30 = 110
x = 110 - 30
x = 80