Answer B …… if im not wrong
X-4y=-2
-x. -x
4y=-2-x
4y=x-(-2)
/4. /4
Y=4x+2/4
3x-y=5
-3x. -3x
-y=5-3x
-y=-3x+5
/-1. /-1
Y=3x-5
27
18
----
45
GCF of 45 = 15
Here is a word document on Greatest Common Factors and how to solve it.
1/2 chance of getting an even number and 1/2 chance of getting an odd one.
