Question

Equation C: y = 7x + 12
Equation D: y = 7x + 2

How many solutions are there to the given set of equations?

One solution
Two solutions
Infinitely many solutions
No solution

Answer 1

i think ... there are no solutions

Answer 2

You can begin by applying any methodology you desire to solve the system, let us, for instance use the reduction method. and what we'll do is C-D and write the equation resulting:
\[0=10\]
Now, this implies that the equations do not have a solution since they represent two parallel lines intersecting the y-axis in two different spots.