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Rashid [163]
2 years ago
10

7 - 5n = 6 + 6(n + 2)

Mathematics
1 answer:
postnew [5]2 years ago
4 0
7- 5n=6+6(n+2)
7- 5n=6+6n+12
7 -5n=18+6n
5n-6n=18-7
-11n=11
n=-1
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3 1/4 - 1 7/8
First, subtract the whole numbers (3 - 1 = 2):           
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Convert 1/4 to 2/8:
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Borrow 1=8/8 from the 2:
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Subtract 7/8 from 10/8:
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The answer is 1 3/8

Alternatively, use improper fractions:
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