SOLUTION: after 4 years father's age will be 3 times as his son and 6 years ago father's age was 7 times as his son find their present ages ?

Question 821472: after 4 years father's age will be 3 times as his son and 6 years ago father's age was 7 times as his son find their present ages ?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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(x + 4) = 3(y + 4)
(x - 6) = 7(y - 6)
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x + 4 = 3y + 12
x - 6 = 7y - 42
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put the system of linear equations into standard form
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x - 3y = 8
x - 7y = -36
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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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answer:
x= father = 41
y= son = 11
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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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