SOLUTION: Sudha is twice as old as her brother.Three years ago, Sudha's age was three times her brother's age. Find the age of Sudha.

Question 926448: Sudha is twice as old as her brother.Three years ago, Sudha's age was three times her brother's age. Find the age of Sudha.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = sudha age now
y = brother age now
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x = 2y
x - 3 = 3(y - 3)
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put the system of linear equations into standard form
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x - 2y = 0
x - 3 = 3y - 9
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x - 2y = 0
x - 3y = -6
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = sudha age now = 12
y = brother age now = 6
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Solve systems of linear equations up to 6-equations 6-variables:
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