document.write( "Question 72860This question is from textbook Intermediate Algebra
\n" ); document.write( ": Solve by the addition method\r
\n" ); document.write( "\n" ); document.write( "7x-4y=-3
\n" ); document.write( " x+2y=5\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "#24
\n" ); document.write( "x-y=3
\n" ); document.write( " -6x+6y=17 \n" ); document.write( "
Algebra.Com's Answer #52108 by checkley75(3666)\"\" \"About 
You can put this solution on YOUR website!
7X-4Y=-3 NOW MULTIPLY THE SECOND EQUATION BY -7 & ADD
\n" ); document.write( "-7X-14Y=-35
\n" ); document.write( "------------------------------------------
\n" ); document.write( "-18Y=-38
\n" ); document.write( "Y=-38/-18
\n" ); document.write( "Y=38/18
\n" ); document.write( "Y=19/9 SOLUTION, NOW SUBSTITUTE (19/9) FOR Y & SOLVE FOR X
\n" ); document.write( "X+2*19/9=5
\n" ); document.write( "X+38/9=5
\n" ); document.write( "X=5-38/9
\n" ); document.write( "X=(45-38)/9
\n" ); document.write( "X=7/9 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "7*7/9-4*19/9=-3
\n" ); document.write( "49/9-76/9=-3
\n" ); document.write( "(49-76)/9=-3
\n" ); document.write( "-27/9=-3
\n" ); document.write( "-3=-3 \n" ); document.write( "
\n" );