y = x - 8
5y - 2x = 14
5(x - 8) - 2x = 14
5x - 40 - 2x = 14
3x = 54
x = 18
y = 18 - 8
y = 10
ANS : 18 and 10
2007-03-25 17:33:21
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answer #1
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answered by Sherman81 6
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let one number be x
therefore another number would be x-8
according to given information,
5(x-8) - 2(x) = 14
5x -40 -2x = 14
3x = 14 + 40
3x = 54
x = 18
x-8 = 10
therefore two nos are 10 and 18..
2007-03-26 00:12:46
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answer #2
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answered by abcd 1
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x = 1st number
x + 8 = 2nd number
5x - 2(x + 8) = 14
5x -2x -16 =14
3x -16 = 14
3x = 30
x = 10
x + 8 = 18
The one number is 10 and the other is 18.
2007-03-26 00:28:41
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answer #3
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answered by sandorgr8 2
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1st number = x
2nd number = x - 8
5(x-8) - 2x = 14
5x - 40 - 2x = 14
3x - 40 = 14
3x = 54
x = 18
x - 8 = 10
The two numbers are 18 and 10.
2007-03-26 00:06:53
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answer #4
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answered by Anonymous
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First, create two variables, x and y.
Let x = the smaller number and y = the larger number.
From the question, you get two equations:
x = y - 8
5x - 2y = 14
You can solve the problem using substitution.
5(y-8) - 2y = 14
5y - 40 - 2y = 14
3y = 54
y = 18
x = 18 - 8 = 10
The two numbers are 10 and 18.
2007-03-26 00:08:50
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answer #5
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answered by Anonymous
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x= (-8) + y
5x - 2y = 14
substitute to find y
5(-8 + y) - 2y = 14
-40 + 5y - 2y = 14
-40 + 3y = 14
3y = 54
3y / 3 = 54 / 3
y = 18
now redo both problems to solve for x, cause now you know y
x= (-8) + 18
x = 10
5x - 2(18) = 14
5x - 36 = 14
5x = 50
5x / 5 = 50 / 5
x = 10
you solve for both to make sure you dont screw up.
x=10, y =18
2007-03-26 00:15:04
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answer #6
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answered by Phil B 3
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