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shepuryov [24]
3 years ago
5

Solving Multi-step3x-6x+7=-2​

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

3x-6x+7=-2

subtract 7 from both sides

3x-6x=-9

-3x=-9

3x=9

x=3

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Step-by-step explanation:

  • If the stock goes up 30%, it's multiplied by 1.3.

The reason is that  x + .3 \times x=1.3\times x

  • If the stock goes down 20%, it's multiplied by 0.8

The reason is that x - .2 \times x = 0.8 \times x

  • If the stock goes down 30%, it's multiplied by 0.7

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  • If the stock goes up 40%, it's multiplied by 1.4.

The reason is that  x + .4 \times x=1.4\times x

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If you increase it by 30% and then drop it by 20%, it means you are multiplying it by 1.3 and then multiplying it by .8. In other words:

1.3 \times 0.8=1.04

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500 \times .04=20

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If you drop it by 30% and then increase it by 40%, you are multiplying it by .7 and then multiplying it by 1.4. In other words:

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Assume the original value = 500

Decrease it by 30% and it becomes 350.

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So, the net loss is = 10

Verification:

500 \times .02=10

Keywords: stock, loss, gain

Learn more loss and gain from brainly.com/question/14456161

#learnwithBrainly

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