Kathyg
Answered

Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Solve by substitution:
2x-y = -5
-x+-y =10

Sagot :

2x-y=-5
-x-y=10
3x=-15
x=-5
-10-y=-5
-y=-5+10
-y=5
y=-5
HOPE I HELPED!!!
eu99li

{2x-y = -5 => -y=-5-2x    /*(-1)    y=2x+5
{-x+-y =10

Substitute y in the second equation:

-x-y=10

-x-(2x+5)=10

-x-2x-5=10

-3x-5=10    /+5

-3x=15     /:(-3)

x=-5

y=2x+5=2*(-5)+5=-10+5=-5

y=-5

Solution:   (-5; -5)

Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.