Answered

At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Connect with professionals on our platform to receive accurate answers to your questions quickly and efficiently. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

x + 5y = 202x - 7y=-45Solve by eliminations

Sagot :

We have the system:

x + 5y = 20

2x - 7y = -45

Using the elimination method, we'll have

x+ 5y = 20 *(-2)

2x - 7y = -45

-2x -10y = -40

2x -7y= -45

Adding the equations:

-17y = -85

y = 5

So:

2x - 7*5 = -45

2x - 35 = -45

2x = -45+35

2x = -10

x= -5

Solution: S= {-5,5}

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.