Question

x + 20 = 20 + 50+ 50

Answer 1

x+20=20+50+50

x+20=120

x=120-20

x=100

k nhé trang rùi mình k lại

Answer 2

x + 20 = 20 + 50 + 50

x + 20 = 70 + 50

x + 20 = 120

x        = 120 - 20

x        = 100

Answer 3

x +20 = 20 +50 +50

x + 20 = 120

x = 120 - 20

x = 100

Answer 4

x + 20 = 20 + 50 + 50

x + 20 = 120

x = 120 - 20

x = 100

Answer 5

x + 20 = 20 + 50 + 50

x + 20 = 120

x = 120 - 20

x = 100   (nhớ mik nhé trang rùi)