document.write( "Question 992022: Please help me solve: w-c/w-d = c^2/d^2 (for w) \n" ); document.write( "
Algebra.Com's Answer #611686 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! (w-c) / (w-d) = c^2 / d^2 \n" ); document.write( "cross multiply the fractions \n" ); document.write( "d^2(w-c) = c^2(w-d) \n" ); document.write( "d^2w - d^2c = c^2w - c^2d \n" ); document.write( "add d^2c to both sides of = \n" ); document.write( "d^2w = c^2w - c^2d + d^2c \n" ); document.write( "subtract c^2w from both sides of = \n" ); document.write( "d^2w - c^2w = d^2c - c^2d \n" ); document.write( "w(d^2 - c^2) = (d^2c - c^2d) \n" ); document.write( "w = (d^2c - c^2d) / (d^2 - c^2) \n" ); document.write( "w = (cd(d - c)) / ((d - c)(d + c)) \n" ); document.write( "w = cd / (d + c)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |