Answered

Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Solve by elimination
8x+9y=-55
-8x+y=65

Sagot :

1. Add the 2 systems and get 10y = 10.
2. Divide both sides by 10 so you get y = 1.
3. Substitute that in either equation (I'm going to use the 2nd equation).
4. -8x + 1 = 65.
5. Subtract 1 from each side.
6. -8x = 64.
7. Divide by -8 on both sides.
8. x = -8.
9. Check in the other equation.
10. 8(-8) + 9(1) ?= -55
11. -64 + 9 ?= -55
12. -55 = -55
eu99li

8x+9y=-55
 -8x+y=65                 (+)

10y=10  /:10

y=1


-8x+1=65

-8x=64   /:(-8)

x=-8


Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.