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astraxan [27]
3 years ago
10

Choose the statement that describes its solution 5(y+1)-7=3(y-1)+2y

Mathematics
1 answer:
DiKsa [7]3 years ago
8 0

5(y + 1) - 7 \:  \:  = 3(y - 1) + 2y \\ 5y + 5 - 7 \:  \:  \: = 3y - 3 + 2y \\ 5y - 2 \:  \:  \:  \:  \:  \:  = 5y - 3

this is the solution...but these are not equal !

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Let h represent the number of hamburgers. Then h+63 is the number of cheeseburgers, and the combined total is ...

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<em>Additional comment</em>

In a "sum and difference" problem like this, the smaller number is half the difference between the sum and the difference. h = (813 -63)/2 = 375. This generic solution applies to all "sum and difference" problems.

8 0
3 years ago
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ANSWER

{i}^{31}  =  - i

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We want to evaluate

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