Answer:
x = -3
y = 0
Step-by-step explanation:
-5x-10y=15 ------->(equation 1)
-5x+10y=15------->(equation 2)
Add (equation 1) and (equation 2)
(-5x-10y) + (-5x+10y) =15 + 15
-5x-10y - 5x + 10y = 30
-5x -5x -10y + 10y = 30
- 10x = 30
x = 30/- 10
x = -3
put x = -3 in (equation 1)
-5(-3) - 10y=15
15 -10y = 15
-10y = 15 - 15
-10y = 0
y = 0/ -10
y = 0
Answer:
(-3,0)
Step-by-step explanation:
-5x-10y=15
-5x+10y=15
Add the two equations together to eliminate y
-5x-10y=15
-5x+10y=15
----------------------
-10x = 30
Divide each side by -10
10x/-10 = 30/-10
x = -3
Now we need to find y
-5x +10y = 15
-5(-3) +10y = 15
15 +10y = 15
Subtract 15 from each side
15-15 +10y = 15-15
10y =0
Divide each side by 10
10y/10 = 0/10
y=0
(-3,0)
