You need to find the Least common Multiple which would be the 36 customer. because 9 times 4 is 36 and 12 times 3 is 36. 36 is the least common multiple
It’s C. The slope needs to be the same. -5 makes it go down 5, right 1, and 5 makes it go up 5, right 1.
(6+4x-6)-( 10-8x-3)
4x+8x-7
12x-7