vinchnzaa
Answered

Get the answers you need at Westonci.ca, where our expert community is dedicated to providing you with accurate information. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

So if the following system of equations by substitution.

7x+2y= -13
-3x-8y= -23

A. (-3,1)
B. (-3,4)
C. (1,3)
D. (1,1)

Sagot :

alex6732

Step-by-step explanation:

Option B is correct.

I'm sure (-3 , 4)

View image alex6732
Yang100

Answer:

x=-3, y=4. (-3, 4). B)

Step-by-step explanation:

7x+2y=-13

-3x-8y=-23

-------------------

4(7x+2y)=4(-13)

-3x-8y=-23

---------------------

28x+8y=-52

-3x-8y=-23

-------------------

25x=-75

x=-75/25

x=-3

7(-3)+2y=-13

-21+2y=-13

2y=-13-(-21)

2y=-13+21

2y=8

y=8/2

y=4

We hope this was helpful. Please come back whenever you need more information or answers to your queries. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.