Aset of equations is given below:
equation c: y = 3x + 7
equation d: y = 3x + 2
how many solutions are there to the given set of equations?
one solution
two solutions
infinitely many solutions
no solution

Y = 3x + 7slope is 3, y int is 7
y = 3x + 2...slope is 3, y int is 2

when the slopes are the same, but the y intercepts different, then it is a parallel line with no solutions.

little tip :
slopes same, y int different, = no solution
slopes same, y int same = infinite solutions
slopes different, y int different = 1 solution

1. y=32. x=-13. n=-40