Westonci.ca connects you with experts who provide insightful answers to your questions. Join us today and start learning! Find reliable answers to your questions from a wide community of knowledgeable experts on our user-friendly Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

4x-y=17, -2x+3y=-26 systems of equations by substitution

Sagot :

rasuka

Answer:

x=2.5

y= -7

Step-by-step explanation:

1.)make y the subject of any equation

4x-y=17

-y=17 -4x

y = -17 + 4x

2.)substitute it in the next equation

-2x + 3(-17 + 4x)= -26

-2x -51 + 12x = -26

-2x + 12x - 51= -26

10x -51= -26

10x = 25

x = 2.5

3.) substitute the x- value into any equation

4x -y = 17

4(2.5)- y = 17

10 - y =17

-y = 7

y = -7