Question

X - 10 = 20 + 10

Answer 1

x - 10 = 20 + 10

x - 10 = 30

x = 30 + 10

x = 40

Vậy x = 40

Answer 2

x-10=30\

x=30+10=40

x-=40

Answer 3

X - 10 = 20 + 10

X - 10 = 30

X        = 30 + 10

X        = 40

Answer 4

X - 10 = 20 + 10

X - 10 = 30

X        = 30 + 10

X        = 40

Answer 5

X - 10 = 20 + 10

X - 10 = 30

X        = 30 + 10

X        = 40