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The sum of two numbers is 25. The sun of twice the first plus seven times the other is 85. What are the numbers?
Grandizer
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May 11, 2023
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The sum of two numbers is 25. The sun of twice the first plus seven times the other is 85. What are the numbers?
Mathematics
high-school
Grandizer
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May 11, 2023
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Grandizer
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since sum of two numbers is 25, then second number is 25 -x
one number is twice the second number plus 7.
let 25 - x be "one number" and x be the "second number"
25 - x = 2x + 7
18 = 3x
x = 6
other number is 25 - 6 = 19
Peng
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May 17, 2023
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Peng
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