Answer:
x,y
-2,5
Step-by-step explanation:
we want to get the variable alone so we need one
so since for the x the value is the same we would have to take away that one to stay with the y value
so since one of the value for x is negative we need to add
so 5x + -5= 0
so now we add 4y+y and that is 5y
and then 10+ 15 and that is 25
now this is our new equation --> 5y=25
now to get the y isolated, we need to divide by 5 on both sides
and so 5y/5=25/5
and we get
y=5
now since we have the answer for y we need to substitute it to find the value for x
-5x +y=15
since we know what y is we need to substitute
-5x+5=15
so now we subtract 5 on both sides since it the opposite of adding
-5x-5-5=15-5
now we have
-5x=10
now we divide by -5 to get the x isolated
-5x/-5=10/-5
nd the answer is
x=-2
hope this helped:D