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djverab [1.8K]
3 years ago
13

twice the sum of a number and 2 is equal to three times the difference of the number and 3. Find the number

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0
2(x+2)=3(x-3)
2x+4=3x-9
2x=3x-13
-x=-13
x=13

The number is 13
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Solution -9-8(1+4h)= -17
geniusboy [140]
Step 1. <span>Add </span>9<span> to both sides

</span>-8(1+4h)=-17+9

Step 2. Simplify -17+9 to -8

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Step 3. Divide both sides by -8

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Step 4. Cancel 1 on both sides

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 Step 5. Divide both sides by 4

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Done! :) Hope this helps! :)

To check -9-8(1+4h)=-17 follow these steps below:

Step 1. Let h = 0

-9-8*(1+4*0)=-17

Step 2. Simplify 4 * 0 to 0

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Step 3. Simplify 1 + 0 to 1

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<span>
Step 4. </span><span>Simplify  8 * 1 to 8
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-9-8=-17
<span>
Step 5. </span><span>Simplify -9 -8 to -17
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Also there is not a pattern of linear trend.

D) The regression line is not a good model because there is a pattern in the residual plot.

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