Answered

Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Please solve this for me using substitution

Please Solve This For Me Using Substitution class=

Sagot :

Answer:

1. 2x + y = 5

y = -2x - 5

2. x^2 + y^2 = 5

sub 1. into 2.

x^2 + (-2x - 5)^2 -5 = 0

x^2+ 4x^2 - 20x + 25 - 5 = 0

5x^2 - 20x + 20 = 0

5(x^2 - 4x + 5) = 0

5(x-2)^2 = 0

x = 2

sub x into 1.

2(2) + y = 5

y = 1

x = 2, y = 1

Step-by-step explanation:

See 2x + y = 5 as equation 1, and see x^2 + y^2 = 5 as equation 2.

Isolate equation 1's y, and sub the equation into equation 2.

The common factor of the new equation is 5, which divides the whole thing by 5, then find the answer, and further sub the answer into the equation 1 since it is easier to do so, therefore, the answer is x = 2, y = 1.

We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. We hope this was helpful. Please come back whenever you need more information or answers to your queries. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.