How many solutions does the following system have?

{ 16x - 8y=20
{ 4x - 2y= 5

A. O
B. 1
C. 2
D. Infinitely many

2 answers

m1 = -A/B = -16/-8 = 2

m2 = -4/-2 = 2

m1 = m2. So the lines do not intersect.
Therefore, there is no solution.
Correction: The Eqs are identical(divide
the 1st Eq by 4). So we have an infinite # of solutions.