You can put this solution on YOUR website! the sum of two numbers is 630. one number is 10 less than 7 times the other find the numbers
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Equations:
x + y = 630
x = 7y-10
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Substitute for "x" and solve for "y":
7y-10 + y = 630
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8y = 640
y = 80
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Solve for "x":
x = 7y-10
y = 7*80-10
y = 550
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Cheers,
Stan H.
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