Answer:
the greatest common factor is 5^2 * 7^3
(I think!!!)
3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81
Answer: 32
Step-by-step explanation:
2^2 is 4
2^-3 = 1/8
and 4/1/8 is 32
<span>when you are solving systems of equation with three variables we use the elimination method to make a system of two equations in two variables</span>
(a,7) => x=a, y=7
5x-y=8
5a-7=8
5a=15
a=3
