Question

x + 10 = 30 + 20 

Answer 1

x+10=30+20

x+10=50

x=50-10

x=40

Answer 2

x + 10 = 50 

x = 50 - 10 

x = 40

Answer 3

x + 10= 30 + 20

x+ 10= 50

      x= 50-10

      x= 40

K mk nha bn, mk trả lời trc đó nha!

Answer 4

x +10=30+20

x+10=50

x=50-10

x=40

Answer 5

x + 10 = 30 + 20

x + 10 = 50

x        = 50 - 10

x        = 40

Answer 6

x+10=30+20

x+10=50

     x=50-10

     x=40

x= 40 nhe ca cach lam nua do nha bai de qua 

Answer 7

x + 10 = 30 + 20

x + 10 = 50

x = 50 - 10

x = 40 

Answer 8

x+10=30+20

x+10=50

x=50-10

x=40