You can put this solution on YOUR website! x = peter age
y = son age
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x = 3y
x = y + 28
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put the system of linear equations into standard form
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x - 3y = 0
x - y = 28
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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 = peter age = 42
y = son age = 14
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Solve and graph linear equations:
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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:
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