Question

x.20=50.2

Answer 1

X x 20= 50x2

X x20=100

x=100:20

x=5

Answer 2

x.20=100

=>x=100:20=5

Answer 3

x.20=50.2

x.20=100

x=100:20

x=5

Vậy x=5

Answer 4

\(x.20=50.2\)

\(x.20=100\)

      \(x=100:20\)

      \(x=5\)

Answer 5

\(x+20=50.2\)

\(x+20=100\)

\(x=100-20\)

\(x=80\)

Answer 6

x.20=50.2

x.20=100

x    =100:20

x    =5