SOLUTION: Sarah's age three years ago is ¾ her age in four years. How old is she now?

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Question 1166775: Sarah's age three years ago is ¾ her age in four years. How old is she now?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
Let x be her age now.


Then the condition says


    x - 3 = %283%2F4%29%2A%28x%2B4%29


To solve it, multiply by 4 both sides.


    4*(x-3) = 3*(x+4)

    4x - 12 = 3x + 12

    4x - 3x = 12 + 12

       x     = 24   is her current age.    ANSWER

Solved.