document.write( "Question 143504: Would someone be able to help me with this, I appreciate it.\r
\n" ); document.write( "\n" ); document.write( "Solve the following system by graphing.
\n" ); document.write( "x + y = 6
\n" ); document.write( "x - y = 3
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #104446 by nabla(475)\"\" \"About 
You can put this solution on YOUR website!
plot y=6-x and y=x-3 and see the place where they intersect.\r
\n" ); document.write( "\n" ); document.write( "\"graph%28+300%2C+200%2C+-10%2C+10%2C+-10%2C+10%2C+6-x%2C+x-3+%29\"\r
\n" ); document.write( "\n" ); document.write( "Looks like y=3/2 and x=9/2.\r
\n" ); document.write( "\n" ); document.write( "Check via substitution:
\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
\n" ); document.write( " \"+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+6%2C%0D%0A++++1%5Cx+%2B+-1%5Cy+=+3+%29%0D%0A++\"We'll use substitution. After moving 1*y to the right, we get:
\n" ); document.write( " \"1%2Ax+=+6+-+1%2Ay\", or \"x+=+6%2F1+-+1%2Ay%2F1\". Substitute that
\n" ); document.write( " into another equation:
\n" ); document.write( " \"1%2A%286%2F1+-+1%2Ay%2F1%29+%2B+-1%5Cy+=+3\" and simplify: So, we know that y=1.5. Since \"x+=+6%2F1+-+1%2Ay%2F1\", x=4.5.
\n" ); document.write( "
\n" ); document.write( " Answer: \"system%28+x=4.5%2C+y=1.5+%29\".
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );