pls..help

Let the number be xy.

So the number is 10x +y

first condition is therefore 10x+y = 4+6(x+y)

                                     4x -5y =4  ---------(1)

second condition is (10x+y) - 18 = 10y+x

                           9x - 9y =18

                             x - y =2  ---------------(2)

Solving equations (1) and (2)

x=6 and y =4

the number is 64