document.write( "Question 346967: the length of a rectangular room is 9 feet longer than twice the width. if the room's perimeter is 186ft what are the room's dimensons? \n" ); document.write( "
Algebra.Com's Answer #248114 by haileytucki(390)![]() ![]() You can put this solution on YOUR website! 2(w)+2(w+9)=186\r \n" ); document.write( "\n" ); document.write( "Multiply 2 by each term inside the parentheses. \n" ); document.write( "2w+2(w+9)=186\r \n" ); document.write( "\n" ); document.write( "Multiply 2 by each term inside the parentheses. \n" ); document.write( "2w+2w+18=186\r \n" ); document.write( "\n" ); document.write( "Since 2w and 2w are like terms, add 2w to 2w to get 4w. \n" ); document.write( "4w+18=186\r \n" ); document.write( "\n" ); document.write( "Since 18 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 18 from both sides. \n" ); document.write( "4w=-18+186\r \n" ); document.write( "\n" ); document.write( "Add 186 to -18 to get 168. \n" ); document.write( "4w=168\r \n" ); document.write( "\n" ); document.write( "Divide each term in the equation by 4. \n" ); document.write( "(4w)/(4)=(168)/(4)\r \n" ); document.write( "\n" ); document.write( "Simplify the left-hand side of the equation by canceling the common factors. \n" ); document.write( "w=(168)/(4)\r \n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation by simplifying each term. \n" ); document.write( "width=42 length=50 \n" ); document.write( " |