document.write( "Question 826288: Jenny has three more than twice the number of compact discs as Joshua. If Jenny has 27 compact discs, how many discs does Joshua own? \n" ); document.write( "

Algebra.Com's Answer #497994 by TimothyLamb(4379) $\"\"$ $\"About$

You can put this solution on YOUR website!
---
\n" ); document.write( "x = Jenny
\n" ); document.write( "y = Joshua
\n" ); document.write( "---
\n" ); document.write( "x = 2y + 3
\n" ); document.write( "x = 27
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form:
\n" ); document.write( "---
\n" ); document.write( "x - 2y = 3
\n" ); document.write( "x = 27
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above linear system in standard form into this matrix-method 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 = Jenny = 27
\n" ); document.write( "y = Joshua = 12
\n" ); document.write( "---
\n" ); document.write( "system matrix
\n" ); document.write( "1 -2
\n" ); document.write( "1 0
\n" ); document.write( "---
\n" ); document.write( "inverse of system matrix
\n" ); document.write( "0 1
\n" ); document.write( "-0.5 0.5
\n" ); document.write( "---
\n" ); document.write( "determinant of system matrix = 2
\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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