document.write( "Question 952021: 18x+4=14y
\n" );
document.write( "21y-5x=-22\r
\n" );
document.write( "\n" );
document.write( "solve using elimination or substitution method \n" );
document.write( "
Algebra.Com's Answer #581418 by macston(5194)![]() ![]() You can put this solution on YOUR website! 18x+4=14y Multiply by 3/2. \n" ); document.write( "27x+6=21y Subtract 27x from each side \n" ); document.write( "6=21y-27x For clarity, reverse sides \n" ); document.write( "21y-27x=6 \n" ); document.write( "21y-5x=-22 Subtract this equation from above. \n" ); document.write( "-22x=28 Divide each side by -22. \n" ); document.write( "x= \n" ); document.write( "18(-28/22)+4=14y \n" ); document.write( "-18.86=14y Divide each side by 14 \n" ); document.write( "-1.347=y ANSWER 2: y=-1.347 \n" ); document.write( "CHECK: \n" ); document.write( "21y-5x=-22 \n" ); document.write( "21(-1.347)-5(-1.273)=-22 \n" ); document.write( "-28.287-(-6.365)=-22 \n" ); document.write( "-21.92=-22 \n" ); document.write( " |