How many solutions does the system have?

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

Question

How many solutions does the system have?

x = -4y + 4
2x + 8y = 8

anonymous · Answer

row reduce to echelon form and find out.

anonymous · Answer

It can have one solution, infinite number of solutions or a unique solution,

diyadiya · Answer

x = -4y + 4
2x + 8y = 8

first equation can be re-written as x+4y=4

inorder to solve it we multiply this equation by 2 
2(x+4y)=2(4)
2x+8y=8

since both equations are same 
you have infinitely many solutions

anonymous · Answer

i had actually just worked this out when you both replied. thanks to both of you!

anonymous · Answer

@Diyadiya I would avoid using the term the "same" in solving system of equations. A better term would be the first equation is a scalar multiple of the second one.

diyadiya · Answer

@Romero 
Oh Sorry!
Thanks for the correction :)