IDNLearn.com: Where your questions are met with thoughtful and precise answers. Discover reliable and timely information on any topic from our network of experienced professionals.

Use the elimination method to solve the system of equations.

X+y=-3
X-y=13


Sagot :

So I will choose to cancel the y first because that is easiest. To do this, add both equations together.
x+y = -3
+
x - y = 13
This will give us:
2x = 10
therefore, x = 5
Now, we can plug this into the first equation to find y
5+y = -3
y = -3 - 5 
y = -8

Answer:
x = 5
y = -8

Hope this helped!! :D
Isolate X from the first:
X=-3-y substitute in the second:
-3-y-y=13
-2y=16 so y=-8
Back in the first:
X-8=-3
X=5