Question

tìm x

123 + x . 2 = 789

Answer 1

123 + x . 2 = 789

          x . 2 = 789 - 123

           x . 2 = 666

            x      = 666 : 2

            x       = 333

Answer 2

123 + x . 2 = 789

x . 2 = 789 - 123

x . 2 = 666

x = 666 : 2

x = 333

Answer 3

\(123+x.2=789\)

\(x.2=789-123\)

\(x.2=666\)

\(x=666:2\)

\(x=333\)

Answer 4

123+x.2+789

x.2=789-123

x.2=666

x=666:2

x=333

Vậy x=333