document.write( "Question 121686: i have a wksht ???..can you still help me?
\n" );
document.write( "Solve the following system of equations:
\n" );
document.write( "4x-y=3
\n" );
document.write( "2x+3y=5
\n" );
document.write( "i got x=-7/9
\n" );
document.write( "y=-29/7
\n" );
document.write( " i dont think what i have is right\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #89332 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 4x-y=3 \n" ); document.write( "2x+3y=5 \n" ); document.write( "----------- \n" ); document.write( "y = 4x-3 \n" ); document.write( "Substitute that into the 2nd equation to solve for \"x\": \n" ); document.write( "2x+3(4x-3)=5 \n" ); document.write( "2x+12x-9=5 \n" ); document.write( "14x = 14 \n" ); document.write( "x = 1 \n" ); document.write( "---------- \n" ); document.write( "Substitute that into y = 4x-3 to solve for \"y\": \n" ); document.write( "y = 4*1-3 \n" ); document.write( "y = 1 \n" ); document.write( "================ \n" ); document.write( "Solution: x=1; y=1 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |