Question

If 2x-y=7 and 4x+y=9 find X + 3y​

Answer 1

Answer:

-7/3

Step-by-step explanation:

2x-y=7

+ 4x+y=9

= 6x=16

x=16/6

so 2*16/6 -y=7

16/3 - y= 7

16/3 -7=y

-5/3 =y

16/6 + 3(-5/3)

8/3 -15/3

-7/3