SOLUTION: Could you please show work on how you get the answer for: One number is 4 less than 3 times another. Their sum is -16. Find the smaller.
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Question 515425: Could you please show work on how you get the answer for: One number is 4 less than 3 times another. Their sum is -16. Find the smaller. Answer by oberobic(2304) (Show Source):
You can put this solution on YOUR website! Let x and y be two numbers.
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We're told x is 4 less than three times y.
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x = 3y-4
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We're told the sum is -16.
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x + y = -16
so
x = -16-y
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Substitute x = 3y-4
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3y-4 = -16-y
4y = -12
y = -3
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Substitute to find 'x'
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x + y = -16
x + (-3) = -16
x = -13
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Check the solution to be sure it is the answer.
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Does x = 3y-4?
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3(-3)-4 = -9-4 = -13
Correct.
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Answer: The smaller number is -3.
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Done.
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