Question

How many solutions does the following system of equations have?
y=5/2x+2
2y=5x+4

Answer 1

y = 5/2 x + 2
2 y = 5 x + 4 ( we will use the substitution method )
2 ( 5/2 x + 2 ) = 5 x + 4
5 x + 4 = 5 x + 4
0 · x = 0
x , y ∈ R

Answer : "C" ) infinitely many solutions.