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Sergeeva-Olga [200]
4 years ago
6

I need help and i would appreciate it and can you explain (That's if you can explain)

Mathematics
1 answer:
Finger [1]4 years ago
6 0

Answer:

x=-2

y=-3

Step-by-step explanation:

-9x+4y = 6

9x+5y = -33

We will add these together to eliminate x

-9x+4y = 6

9x+5y = -33

----------------

0x +9y =- 27

9y = -27

Divide by 9

9y/9 = -27/9

y =-3

We still need to find x

9x +5y = -33

9x +5(-3) = -33

9x-15 = -33

Add 15 from each side

9x+15-15 =-33+15

9x=-18

Divide by 9

9x/9 = -18/9

x = -2

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Answer:

Part B: \displaystyle [1, 2]

Part A: Set both equation equal to each other by Substitution, since our <em>y-values</em> are already given to us.

Step-by-step explanation:

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Plug this coordinate back into the above equations to get the <em>y-coordinate</em><em> </em>of 2.

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I am joyous to assist you at any time.

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Substitution method<br><br> 3x - 4y = 18<br> 2x + y = 1
insens350 [35]
There are 3 pictures of the steps.

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Step-by-step explanation:

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