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3 years ago

Solve the system using the method of you choice: -x + 4y = 12 5x - 2y = -6

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

7 0

Answer:

(0, 3)

Step-by-step explanation:

Let's first eliminate x. To do this, multiply all three terms of the first equation by 5:

-5x + 20y = 60

5x - 2y = -6

----------------------

18y = 54, so that y = 3.

Substituting 3 for y in the first equation yields:

-x + 4(3) = 12, or -x = 0. Thus, x = 0, and the solution is

(0, 3)

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Long story short, this allows us to go from

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$=-5\ln\left|\dfrac{5+\sqrt{25-x^2}}x\right|+\sqrt{25-x^2}+C$

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