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SSSSS [86.1K]
3 years ago
12

I don’t under please help!!!! -2x-x+8

Mathematics
1 answer:
mart [117]3 years ago
5 0
-2x-x+8
Step 1) -2x-1x+8

step 2) (-2-1)x+8

Step 3) -3x+8

Answer: -3x+8 :)
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Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $30 ever
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Answer:

10 months. Each plan will save 800 dollars.

Step-by-step explanation:

500 + 30x = y

300 + 50x = y

You want the months to give the same amount of money. The x has to be the same for both

500 + 30x = 300 + 50x        Subtract 300 from both sides

500 - 300 + 30x = 50x         Combine

200 + 30x = 50x                   Subtract 30x from both sides

200 = 50x - 30x                    Combine

200 = 20x                              Divide by 20

x = 10

So in 10 months time the amounts will be the same. How much will there be?

500 + 30*10 = 500 + 300 = 800

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Answer:

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Look at photos to see solution.

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