Answer:
uhh 7 people joined?
Step-by-step explanation:
The correct answer is the first option.
If you want to use elimination, you can sum the two equations for example, so that the x's simplify:



Plug this value for y in one of the equations to derive the value of x:

So, the solution is 
3/7*5/6
cross out 3 and 6
divide by 3
3/3= 1
6/3= 2
1/7*5/2
mutiply the denominators together
7*2= 14
mutiply the numerators together
1*5= 5
Answer:
5/14
Answer:
1×-5= -5squared =25+(4×-4squared)=25+(-16)=9
Answer: The quotient is 5.5
Step-by-step explanation