Question

Can someone please help & explain this question?
How many solutions does the system have?

x = -4y + 4
2x + 8y = 8

Answer 1

x = -4y + 4 --- (1)
2x + 8y = 8 --- (2)

there are a few ways to solve this :3 you can:

1. substitution
plug in (1) to (2)
2 (-4y + 4) + 8y = 8

try working it out from there :p

2. elimination
get (3) from (1)

x + 4y = 4 --- (3)

then times it by 2 so you can eliminate it by (2)

2x + 8y = 8 --- (3)
2x + 8y = 8 --- (2)
------------------- -
..............wait.

something is wrong with this question > 3>

2 (-4y + 4) + 8y = 8
-8y + 8 + 8y = 8
8 = 8

....................

Answer 2

idk get someone pro to answer this sorry xDD

Answer 3

x = -4y + 4
2x + 8y = 8

x = -4y + 4
2(x) = 2(-4y + 4)

one equation is a multiple of the other. that means you have infinitely many solutions

Answer 4

thanks you so much!