document.write( "Question 987050: Y=5x-1 2x-y=7 \n" ); document.write( "
Algebra.Com's Answer #607841 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "y=5x-1
\n" ); document.write( ".
\n" ); document.write( "2x-y=7 Use above equation to substitute for y.
\n" ); document.write( "2x-(5x-1)=7
\n" ); document.write( "2x-5x+1=7
\n" ); document.write( "-3x=6
\n" ); document.write( "x=-2
\n" ); document.write( ".
\n" ); document.write( "y=5x-1
\n" ); document.write( "y=5(-2)-1
\n" ); document.write( "y=-10-1
\n" ); document.write( "y=-11
\n" ); document.write( ".
\n" ); document.write( "ANSWER: (-2,-11)
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( "2x-y=7
\n" ); document.write( "2(-2)-(-11)=7
\n" ); document.write( "-4+11=7
\n" ); document.write( "7=7 \n" ); document.write( "
\n" );