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Vlad [161]
3 years ago
14

Not really sure how to do this

Mathematics
1 answer:
wariber [46]3 years ago
6 0

Answer:

Step-by-step explanation:

\begin{bmatrix}6x=3y-7\\ 9y-18x-9=0\end{bmatrix}\\\mathrm{Isolate}\:x\:\mathrm{for}\:6x=3y-7:\quad x=\frac{3y-7}{6}\\6x=3y-7\\\mathrm{Divide\:both\:sides\:by\:}6\\\frac{6x}{6}=\frac{3y}{6}-\frac{7}{6}\\Simplify\\x=\frac{3y-7}{6}\\\mathrm{Subsititute\:}x=\frac{3y-7}{6}\\\begin{bmatrix}9y-18\cdot \frac{3y-7}{6}-9=0\end{bmatrix}\\\mathrm{Refine\:}9y-18\frac{3y-7}{6}-9=0\\12=0\\12=0\:\mathrm{\:is\:false,\:therefore\:the\:system\:of\:equations\:has\:no\:solution}\\No\:Solution

I hope this is what you wanted

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A plumber charges $90 per hour and a $50 travel fee.
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3 years ago
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Jacob purchased a bag of 60 marbles of various colors. The bag contained 20 red, 15 green and 25 blue marbles. What percent of t
zalisa [80]
<h3>Answer:  25%</h3>

Work Shown:

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2 years ago
What is the domain of the function represented by the graph? A graph shows an upward parabola on a coordinate plane vertex at (m
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Using it's concept, the domain of the function represented by the graph is all real numbers.

<h3>What is the domain of a function?</h3>

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3 0
2 years ago
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Tomtit [17]

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4 0
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