45.4k views
20 votes
Simultaneous Equations
2x+4y=22
2x+2y=15

1 Answer

5 votes

Answer:

x = 4

y =
(7)/(2)

Explanation:

Ummmm

I'm not sure if this is corrrect but this is what I got

So first you solve 2x+4y=22 to find x

and you get x =
-2y+11

Then you have to subtitute
-2y+11 for
x in
2x+2y=15

which you then get y=
(7)/(2)

After you have to subttitute y=
(7)/(2) for y in x =
-2y+11

which you get as x=4

Finally you get the answer as:

x = 4

y =
(7)/(2)

User CYAN CEVI
by
4.8k points