3 years ago

3y - 5z = -23

1 answer:

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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Evaluate 23x-1 for x = 1.

swat32

22 is the answer for 23x-1 for x=1

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3 years ago

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vlada-n [284]

Answer:

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Step-by-step explanation:

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2 years ago

Jo and Gary share marbles in the ratio 3:1 jo gets 12 how many marbles does gary get

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3 years ago

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2 years ago

Your gym membership costs $33 per month after an initial membership fee . you paid a total of $228 after 6 months.

Lubov Fominskaja [6]

So, what I did was multiply 33*6 and got 198 and then 228-198 to find out that the initial fee was 30 dollars. then multiply 33*9+30 to get a 9 month total cost of $327. Hope from here you are able to set up your equation now you have all the information needed :)

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3 years ago