Question 582657
let the numbers be x & y

2x+3y=67.............(1)

3x-y=7.............(2)
multiply equation by 3
9x-3y=21

add to equation (1)
11x=88
/11
x=8 

plug value of x in (1)

2x+3y=67
16+3y=67
3y=51
/3
y=17