Question

I can not under stand this question 3x-5y-4 , 9x-2y +7

Answer 1

Answer:

x=[-43/39]. y=[19/13]

Step-by-step explanation:

3x-5y=4_____(1)

9x-2y=-7____(2)

From (1) x=4+5y/3___(3)

Substitute (3) in (2)

9(4+5y/13)-2y= -7

12+15y-2y= -7

13y=-7-12

y=-19/13

Substitute y=-19/13 in (3)

x= 4+5*(-19/13)/3

=-43/13*1/3

=-43/39