Question 869966
Sandra is 36 years old. her son is 14 years old. how many years ago was Sandra 3 times older than her son?
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Let the number of years be "x"::
Equation:
36-x = 3(14-x)
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36-x = 42-3x
-x + 3x = 42-36
2x = 6
x = 3 years ago
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Checking::
36-3 = 3(14-3)
33 = 3(11)
Cheers,
Stan H.
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