We are given with two equations to find the values of two variables, hence the problem can be solved.
Adding the two equations:
x + y = 12<u>x - y = 10
</u>2x = 22
<u />x =11
y = 1
1.D
2.C
3.B
If you need to know the amount let me know.
It is number 3. Have a good day.
Positive 14/472 (because of rise over run when finding slope)
I think that the answer for that one is A
