Since they both have 3x terms subtract the second from the first to get rid of the x terms...
3x+2y=10
-3x+y=-13
__________
3y=-3
y=-1, which makes 3x+2y=10 become: 3x-2=10 so
x=4
So the solution is the point (4, -1)
-9x from both sides
5x+2=-3
-2 from both sides
5x=-5
x= -1
Nine hundred thirteen thousand
Answer:
16 books are math books. 12 are science books. 44 are romance novels.
