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3 years ago

Complete the solution of the equation. Find the value of y when x equals -19.

Mathematics

1 answer:

yaroslaw [1]3 years ago

8 0

2x - 5y = -28....when x = -19
2(-19) - 5y = -28
-38 - 5y = -28
-5y = -28 + 38
-5y = 10
y = -10/5
y = 2 <==

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<h2>Hello!</h2>

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So, solving we have:

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$(x^2+8x+(\frac{8}{2})^{2})+(y^2+8y+(\frac{8}{2})^{2})=-28+((\frac{8}{2})^{2})++(\frac{8}{2})^{2})\\\\(x^2+8x+16 )+(y^2+8y+16)=-28+16+16\\\\(x^2+4)+(y^2+4)=4$

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Have a nice day!

Note: I have attached a picture for better understanding.

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