document.write( "Question 821071: There are 3 brothers all with different ages.
\n" ); document.write( "The oldest is twice as old as the youngest.
\n" ); document.write( "The middle child is one year younger than the oldest.
\n" ); document.write( "The sum of their ages is 39.
\n" ); document.write( "Find how old each brother is. \n" ); document.write( "
Algebra.Com's Answer #493891 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
z = 2x
\n" ); document.write( "y = z - 1
\n" ); document.write( "x + y + z = 39
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
\n" ); document.write( "---
\n" ); document.write( "2x - z = 0
\n" ); document.write( "y - z = -1
\n" ); document.write( "x + y + z = 39
\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( "answer:
\n" ); document.write( "x= 8
\n" ); document.write( "y= 15
\n" ); document.write( "z= 16
\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( "
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