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NNADVOKAT [17]
2 years ago
10

2y +9 =x 9x- 8y=31 System of substitution

Mathematics
2 answers:
Ilya [14]2 years ago
6 0

Answer:

I have solve it in above picture

VLD [36.1K]2 years ago
3 0

Answer:

x = -1

y = -5

Step-by-step explanation:

9(2y+9) - 8y = 31

18y + 81 - 8y = 31

10y + 81 = 31

10y = -50

y = -5

2(-5) + 9 = x

-10 + 9 = x

-1 = x

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A dragonfly traveled at a rate of 35 miles per hour for 2.5 hours. What distance did the dragonfly travel?
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Explanation:

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maxonik [38]

Answer:

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Step-by-step explanation:

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

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