Question

Will medal and fan who ever answers first! How many answers do these system of equations have?
X=-4Y+4, 2X+8Y=8

Y=6X+2, 3Y-18=12

X-4Y=12, 5X-20Y=60

Y-7X=-14, 7Y-49X=-2

Answer 1

Re-write each as y = mx + b
if they have same m, different b, they are parallel, no solutions
same m, same b, identical, infinite number of solutions (ill defined)
different m, one solution, their intersection.

Answer 2

Thank you so much!!