Question

Solve the following system of equation. 3x-4y=-2 9x+4y=8.(please explain in brief)​

Answer 1

Step-by-step explanation:

3x -4y =-2

and 9x+4y =8

multiplying 1st equation by 3

9x-12y =-6

9x+4y=8

9 and 9 get cancelled

-16y=-14

y= 14by16

y=7 by 8

put in equation 1

21 by 8 -4y =2

-4y =2-21 by 8

-4y =5 by 8

y= 5 by 16

Answer 2

Answer:

answer is

x=1/2,y=7/8