document.write( "Question 766737: The length of a room is 4 m more than 3 times its width. If the perimeter is 28m, how wide is the room? \n" ); document.write( "
Algebra.Com's Answer #467224 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Width = x \n" ); document.write( "Length = 4 + 3x \n" ); document.write( "Perimeter = 2*width + 2*length \n" ); document.write( "28 = 2(x) + 2(4 + 3x) \n" ); document.write( "28 = 2x + 8 + 6x \n" ); document.write( "28 - 8 = 8x \n" ); document.write( "20 = 8x \n" ); document.write( "x = 20/8 \n" ); document.write( "x = 2.5m \n" ); document.write( "Width = 2.5m \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |