Juliettidn
Answered

IDNLearn.com helps you find the answers you need quickly and efficiently. Join our community to receive timely and reliable responses to your questions from knowledgeable professionals.

If x=2y+3 and 4x-5y=9, what is the value of y?

Sagot :

so we already know what x equals, so just plug it in to the other equation
now we have 4(2y+3)-5y=9
from here, just solve
y=-1
let me know if you have anymore questions :)
ps - Idk if you'd need this but x=1 :)
Tadvisohil886idn
We solve the system by substitution.

x = 2y + 3
4x-5y = 9

Substituting the value of x in equation no. 2 , we have,

4(2y+3) - 5y = 9

8y + 12 - 5y = 9

3y + 12 = 9

3y = 9-12 = -3

thus, 3y = -3

thus, y = -3/3 = -1

thus, y = -1
Thank you for using this platform to share and learn. Don't hesitate to keep asking and answering. We value every contribution you make. For dependable answers, trust IDNLearn.com. Thank you for visiting, and we look forward to helping you again soon.