document.write( "Question 184797: Solve the system of equations by the substitution method.\r
\n" ); document.write( "\n" ); document.write( "x+11y=51
\n" ); document.write( "3x+6y=18\r
\n" ); document.write( "\n" ); document.write( "So are you saying there is no solution?
\n" ); document.write( "

Algebra.Com's Answer #138724 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Solve the system of equations by the substitution method.
\n" ); document.write( "x+11y=51
\n" ); document.write( "3x+6y=18
\n" ); document.write( "Let's see if there is a solution
\n" ); document.write( "x = (51 - 11y); use 1st equation for substitution in the 2nd equation:
\n" ); document.write( ":
\n" ); document.write( "3(51-11y) + 6y = 18
\n" ); document.write( ":
\n" ); document.write( "153 - 33y + 6y = 18
\n" ); document.write( ":
\n" ); document.write( "-27y = 18 - 153
\n" ); document.write( ":
\n" ); document.write( "-27y = -135
\n" ); document.write( "y = \"%28-135%29%2F%28-27%29\"
\n" ); document.write( "y = +5
\n" ); document.write( ":
\n" ); document.write( "Find x: x = (51-11y)
\n" ); document.write( "x = 51 - 11(5)
\n" ); document.write( "x = 51 - 55
\n" ); document.write( "x = -4
\n" ); document.write( ";
\n" ); document.write( ":
\n" ); document.write( "Check solution in the 2nd equation
\n" ); document.write( "3x + 6y = 18
\n" ); document.write( "3(-4) + 6(5) =
\n" ); document.write( "-12 + 30 = 18
\n" ); document.write( "
\n" );