SOLUTION: A man is nine times as old as his son. In nine years, he will be three times as old as his son. How old are each of them now?

Question 831857: A man is nine times as old as his son. In nine years, he will be three times as old as his son. How old are each of them now?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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x = 9y
x + 9 = 3(y + 9)
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put the system of linear equations into standard form:
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x = 9y
x + 9 = 3y + 27
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x - 9y = 0
x - 3y = 18
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = man = 27
y = son = 3
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php

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