document.write( "Question 926065: the sum of present ages of a father and son is 53 years. four years ago, the father's age was 4 times the of the son. find their present ages. \n" ); document.write( "

Algebra.Com's Answer #561959 by TimothyLamb(4379) $\"\"$ $\"About$

You can put this solution on YOUR website!
x = father age now
\n" ); document.write( "y = son age now
\n" ); document.write( "---
\n" ); document.write( "x + y = 53
\n" ); document.write( "x - 4 = 4(y - 4)
\n" ); document.write( "---
\n" ); document.write( "x + y = 53
\n" ); document.write( "x - 4 = 4y - 16
\n" ); document.write( "---
\n" ); document.write( "x + y = 53
\n" ); document.write( "x - 4y = -12
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
\n" ); document.write( "---
\n" ); document.write( "x + y = 53
\n" ); document.write( "x - 4y = -12
\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
\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = father age now = 40
\n" ); document.write( "y = son age now = 13
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\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( "

\n" );