Question

tìm x :

x + 20 - 10 = 110

x + 80 - 50 = 100

Answer 1

a)X=100

b)X=70

K MKNHA BN

Answer 2

x + 20 - 10 = 110

x + 20 = 110 + 10

x + 20 = 120

x = 120 - 20

x = 100

x + 80 - 50 = 100

x + 80 = 100 + 50

x + 80 = 150

x = 150 - 80

x = 70

Answer 3

x+ 20= 110+10

x+20= 120

      x= 120-20

      x= 100

x+80= 100+50

x+80= 150

      x= 150-80

      x=70 

k nhé

Answer 4

tìm x :

x + 20 - 10 = 110

x + 20 = 110 + 20

x + 20 = 120

        x = 120 - 20

        x = 100

x + 80 - 50 = 100

x + 80 = 100 + 50

x + 80 = 150

        x = 150 - 80

        x = 70

Answer 5

a. x= 110 + 10 - 20

x= 120

b. x= 100+ 50 - 80

x = 70

k cho mình nha bạn

Answer 6

a,100

b,70