Question 177115
    The sum of two positive integers is 108. One integer is three times as great as the other. Find the integers
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Let x = smaller integer
and y = larger integer
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x+y = 108 (equation 1)
y = 3x    (equation 2)
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substitute the value of y from equation 2 into equation 1 and solve for x:
x+y = 108
x+3x = 108
4x = 108
x = 27
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substitute the above into equation 2 and solve for y:
y = 3x
y = 3(27)
y = 81
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The two integers are 27 and 81