3y-x=3 and x is four times the value of y what is the value of x-y?

x - y = - 9

Step-by-step explanation:

from the equation

3y - x = 3

and x is four times the value of y

i. e x = 4y

put x = 4y into the first equation

we have;

3y - 4Y = 3

-Y = 3

Divide both sides by - 1

we have

y = - 3

so put y = - 3 in the 2nd equation

i. e x = 4y

x = 4 * - 3

x = - 12

therefore x = - 12 and y = - 3

so tho find x - y

we have

-12 - (-3)

= - 9

therefore x - y = - 9