Answered

Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

3x+2y-z+5w=20
y=2z-3w
z=w+1
2w=8
Solve this system.

Sagot :

LammettHash

Start from the last equation:

2w = 8   ⇒   w = 4

z = w + 1   ⇒   z = 4 + 1   ⇒   z = 5

y = 2z - 3w   ⇒   y = 2•5 - 3•4   ⇒   y = -2

3x + 2y - z + 5w = 20   ⇒   3x + 2•(-2) - 5 + 5•4 = 20

⇒   3x = 9   ⇒   x = 3

dhakalritu76

Step-by-step explanation:

or , w = 8/2

or , w = 4

i think this is the answer

We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.