document.write( "Question 173839: how do you solve and check the following problems using the substition method?
\n" ); document.write( "x+3y=23
\n" ); document.write( "3x-2y=3 \n" ); document.write( "

Algebra.Com's Answer #128707 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"x%2B3y=23\"$ , EQN 1---> $\"y=%2823-x%29%2F3=%28-1%2F3%29x%2B%2823%2F3%29\"$
\n" ); document.write( " $\"3x-2y=3\"$ , EQN 2---> $\"y=%283x-3%29%2F2=%283%2F2%29x-%283%2F2%29\"$
\n" ); document.write( "In EQN 1, we get
\n" ); document.write( " $\"x=23-3y\"$ , EQN 3, subst. in EQN 2:
\n" ); document.write( " $\"3%2823-3y%29-2y=3\"$
\n" ); document.write( " $\"69-9y-2y=3\"$
\n" ); document.write( " $\"69-3=9y%2B2y\"$
\n" ); document.write( " $\"66=11y\"$ ------> $\"cross%2866%296%2Fcross%2811%29=cross%2811%29y%2Fcross%2811%29\"$
\n" ); document.write( " $\"highlight%28y=6%29\"$ , subst. in EQN 3:
\n" ); document.write( " $\"x=23-3%286%29=23-18\"$
\n" ); document.write( " $\"highlight%28x=5%29\"$
\n" ); document.write( "We'll see the graph:
\n" ); document.write( " --> see point of intersection (5,6)
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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