Question

if 15x+17y= 3q and 17x+15y = 21. find the value os(x-y) ​

Answer 1

Answer:

Step-by-step explanation:

Given,

15x + 17y = 3q------(i)

17x + 15y = 21-----(ii)

(ii) - (i)

   17x + 15y = 21

(-) 15x + 17y = 3q

    2x - 2y = 21 - 3q

    2(x - y) = 3(7 - q)

       x - y  = $\frac{3(7 - q)}{2}$

PLEASE MARK BRAINLIEST...