Puppies w/ long hair - 2
Dogs that aren't puppies w/ long hair - 11
Total of dogs that have long hair is 13
Puppies w/ no long hair - 13
Dogs that aren't puppies w/ no long hair - 6
Total of dogs w/ no long hair - 19
Total of puppies - 15 Total of non-puppies - 17
Total dogs - 32
system of equations:
-2x+3y=-6
-2x=-6-3y
(-2x)/-2 = (-6-3y)/-2
x=3/2y +3
5x-6y=15 (x=3/2y+3)
5(3/2y +3) - 6y=15
15/2y +15 -6y =15
3/2y + 15= 15
3/2y= 15-15
3/2y=0
(3/2y)/3/2 = 0/(3/2)
y=0 (answer)