document.write( "Question 821481: after 4 years father's age will be 3 times as his son
\n" ); document.write( "and 6 years ago father's age was 7
\n" ); document.write( "times as his son find their present
\n" ); document.write( "ages ? Solution . . . \n" ); document.write( "
Algebra.Com's Answer #494250 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "(x + 4) = 3(y + 4)
\n" ); document.write( "(x - 6) = 7(y - 6)
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\n" ); document.write( "x + 4 = 3y + 12
\n" ); document.write( "x - 6 = 7y - 42
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\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x - 3y = 8
\n" ); document.write( "x - 7y = -36
\n" ); document.write( "---
\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 = 41
\n" ); document.write( "y= son = 11
\n" ); document.write( "---
\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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