document.write( "Question 928038: how do I solve x+3y=6 and 2x+3y=18 by the substitution method \n" ); document.write( "
Algebra.Com's Answer #563423 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
x+3y=6
\n" ); document.write( "2x+3y=18
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
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\n" ); document.write( "x+3y=6
\n" ); document.write( "2x+3y=18
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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
\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = 12
\n" ); document.write( "y = -2
\n" ); document.write( "---
\n" ); document.write( "by substitution:
\n" ); document.write( "---
\n" ); document.write( "x + 3y = 6
\n" ); document.write( "x = 6 - 3y
\n" ); document.write( "---
\n" ); document.write( "2(6 - 3y) + 3y = 18
\n" ); document.write( "12 - 6y + 3y = 18
\n" ); document.write( "-3y = 6
\n" ); document.write( "y = -2
\n" ); document.write( "---
\n" ); document.write( "x = 6 - 3y
\n" ); document.write( "x = 6 - 3*(-2)
\n" ); document.write( "x = 12
\n" ); document.write( "---
\n" ); document.write( "solution by substitution:
\n" ); document.write( "x = 12
\n" ); document.write( "y = -2
\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
\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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