2 years ago

Solve linear system using substitution y=6-2x 7x-y=3

1 answer:

5 0

$\left \{ {{y=6-2x} \atop {7x-y=3}} \right. \\\\substitute\ first\ equation\ into\ the\ second\\\\
7x-(6-2x)=3\\\\
7x-6+2x=3\\\\
9x-6=3\ \ \ | add\ 6\\\\
9x=9\ \ \ | divide\ by\ 9\\\\
x=1\\\\
y=6-2*1=6-2=4$

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yaroslaw [1]

Answer:

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Explanation:

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$\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points$

$\rightarrow \sf slope\ (m): \dfrac{21-28}{-3-(-4)} = -7$

Now find equation:

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$\rightarrow \sf y - 21 = -7(x - (-3))$

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Fiesta28 [93]

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spin [16.1K]

Answer:

the answer is $\frac{25}{15}\\$ Hope this helps :}

Step-by-step explanation:

Here are 2 bowls. One of them has 25 gems and the other has 15 gems. Some of them are red. All the gems from the two bowls are now put into a third bowl. What fraction of the gems in the third bowl will be red?

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Help plz!!!! Thx !!!!

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3 outa 12 are 5
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Hence Getting 25.
So 25 Is the Answer

I Hope I Helped :)

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