Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Get accurate and detailed answers to your questions from a dedicated community of experts on our Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

x+y=0 and x-y=10 solve by substitution.. How do I figure out the problem!

Sagot :

konrad509
[tex]x+y=0 \\ x-y=10 \\\\ x=-y\\ x-y=10\\\\ -y-y=10\\ -2y=10\\ y=-5\\\\ x-5=0\\ x=5\\\\ \boxed{(x,y)=(5,-5)}[/tex]
  x+y=0
- x-y=10
--------------
(0)+2y=-10 [x and -x cancel each other out. y minus -y is the same as y+y]
y=-5 
now substitute -5 in for y in either problem:

x+-5=0
x=5
We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.