The answer would be 1/4 or

i hope this answer helps!
You cant simplify it anymore because it is not possible
Answer:c
Step-by-step explanation:
Answer:
a=3
Step-by-step explanation:
This should be very simple, just substitute xy and y for 5 and 7 respectively, so 5a-2*7=1, or 5a-14=1, or 5a=15, if we divide both sides by 5, we get a=3