Answer:
i think its neither
Step-by-step explanation:
Assuming you are asking
does -2x+y=6 and y-2x=4 have a solution
look at them
rewrite first equation by switching x and y
y-2x=6 and
y-2x=4
false since they are same values
there is no solution
these 2 lines are paralell
NO SOLUTION
Answer:
1) 
2)
days
Step-by-step explanation:
1) First of all we use
so the total energy will be
.
2)Then we use
and
or 