document.write( "Question 821465: a father is now four times as old as his son. if the sum of their ages 10 years ago was 60, find their present ages
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Algebra.Com's Answer #494136 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "x = 4y
\n" ); document.write( "(x - 10) + (y - 10) = 60
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x - 4y = 0
\n" ); document.write( "x + y = 80
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\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
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\n" ); document.write( "answer:
\n" ); document.write( "x= father = 64
\n" ); document.write( "y= son = 16
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "
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