209k views
3 votes
4y + x = 12, 2x = 24 - 8y
Solve by Substitution

1 Answer

5 votes

Answer: Undefined

Explanation:

4y+x=12, 2x=24-8y

Isolate x by subtracting 4y

4y+x=12

x=12-4y

Plug the equation for x in to anywhere you see the variable x in the other equation

2(12-4y)=24-8y

Distribute 2

24-8y=24-8y

Get the variables on one side so add 8y (cancels out)

24=24

Can’t solve its undefined

User Pastillman
by
5.5k points