Answered

Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Connect with a community of experts ready to provide precise solutions to your questions on our user-friendly Q&A platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

using the system of substitution
2x-3y=12
x + y=9

Sagot :

BashfulTrombone
Here! I hope this helps! :) Work is in the picture
x=7.8
y=1.2
(7.8,1.2)
View image BashfulTrombone
iGreen
2x - 3y = 12
x + y = 9

x + y = 9

Subtract 'x' to both sides:

y = -x + 9

Plug in -x + 9 for 'y' in the first equation

2x - 3(-x + 9) = 12

Distribute -3:

2x + 3x - 27 = 12

Combine like terms:

5x - 27 = 12

Add 27 to both sides:

5x = 39

Divide 5 to both sides:

x = 7.8

Plug this into any of the two equations to find 'y':

x + y = 9

7.8 + y = 9

Subtract 7.8 to both sides:

y = 1.2

So the solution is (7.8, 1.2).
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.