document.write( "Question 103719: One number is 5 more than another number. Three times the first plus twice the second is 30.Find the numbers. \n" ); document.write( "
Algebra.Com's Answer #75482 by elima(1433)![]() ![]() ![]() You can put this solution on YOUR website! One number is 5 more than another number. Three times the first plus twice the second is 30.Find the numbers. \n" ); document.write( "x = first number \n" ); document.write( "y = second number \n" ); document.write( "x=y+5 \n" ); document.write( "3x +2y = 30 \n" ); document.write( "lets substitute x=y+5 in the second equation for x; \n" ); document.write( "3(y+5) + 2y =30 \n" ); document.write( "3y + 15 + 2y = 30 \n" ); document.write( "5y + 15 =30 \n" ); document.write( "5y = 30 -15 \n" ); document.write( "5y = 15 \n" ); document.write( "y = 3 \n" ); document.write( "Now that we have y lets plug that answer into either equation for y; \n" ); document.write( "x = 3 + 5 \n" ); document.write( "x = 8 \n" ); document.write( ":) \n" ); document.write( " |