Answered

Explore Westonci.ca, the top Q&A platform where your questions are answered by professionals and enthusiasts alike. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

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.

Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.