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castortr0y [4]
3 years ago
8

3y - 5z = -23

Mathematics
1 answer:
leonid [27]3 years ago
8 0
Starting off, we can multiply the third equation by 2 and add it to the third to get rid of both the x and y variables. Next, we get z=1. Plugging that into 3y-5z=-23, we get 3y-5=-23. Adding 5 to both sides, we get 3y=-18. After that, we can divide both sides by 3 to get y=-6. Plugging that into -2x-y-z=-3, we get -2x+6-1=-3=-2x+5. Subtracting 5x from both sides, we get -2x=-8. After that, we can divide both sides by -2 to get x=4.
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Yes

Step-by-step explanation:

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3 years ago
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The sum of a number and 7 is the same as double the number increased by 3
koban [17]
So, let’s represent the number as n:
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4 0
3 years ago
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kvv77 [185]

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3 years ago
What is the answer and how to you solve it as easy as possible​
Gnom [1K]

Answer:

A = 504inch

Step-by-step explanation:

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or A = 2wl + 2lh + 2hw, where w is the width, the l is the length, and the h is the height.

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Then add all

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7 0
3 years ago
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