Answer:
[tex]x=16 \ \ and \ \ y=4[/tex]
Step-by-step explanation:
Suppose the numbers are x and y
One number say x is equal to 4 times another number say y
[tex]x=4y[/tex] ---------------- (1)
Their difference is 12
[tex]x-y=12[/tex] ------------(2)
Put x=4y in equation (2)
[tex]4y-y=12[/tex]
[tex]3y=12\\y=4[/tex]
Put y=4 in equation (1)
[tex]x=4(4)\\x=16[/tex]