For this case we must solve a system of two equations with two unknowns, given by "x" and "y".
We have:
We multiply (2) by -1:
We add (1) and (3):
Clearing x:
We substitute 
in (2)
Thus, the solution of the system is
Answer:
the solution of the system is
Answer:
x can be any value
Step-by-step explanation:
x can be any value and its output is always a constant 8.
Answer:
a: 0.55
b:11/20
Step-by-step explanation:
hope this helps
Answer:
30
Step-by-step explanation:
if im reading the qestuion right
so she had 80 bucks she spend 20 on a ticked so she has 60 left so if im reading it right she spent all of her money so 60 divde by 2 is 30.
hoped this helped!
