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Tresset [83]
3 years ago
5

I need these three solved. I have a lot of math to do. the directions say solve each system of equations using substitution. sho

w mathematical work for each to justify your response.

Mathematics
1 answer:
alekssr [168]3 years ago
6 0

Answer:

5.

x + 2(x + 1) = 8 --> x = 2

y = 2 + 1 = 3

7.

3(9 + 2y) + 5y = 20 --> y = -7/11

x = 9 + 2(-7/11) = 85/11

9.

3(-1 - 2y) + 5y = -1 --> y = -2

x = -1 - 2(-2) = 3


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2 years ago
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DedPeter [7]

check the picture below.

5 0
3 years ago
HELP ASAP.
8090 [49]

Hey there!

#1 ⬇️

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Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

6 0
2 years ago
Factor by grouping.. . 3x^2 + 7x – 6. A. (3x – 2)(x – 3) . B. (3x – 2)(x + 3) . C. (x + 3)(3x + 2) . D. (3x + 2)(x – 3)
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The correct answer is letter "<span>B. (3x – 2)(x + 3)."
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This is how to factor the given polynomial:
<span>3x^2 + 7x – 6
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It takes trial and error in order to get the final factor of a given polynomial. It has to be exact and correctly done.</span>
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