Online math tools!!!!!
http://www.mathportal.org/calculators/solving-equations/rational-equation-solver.php https://www.google.com.hk/?gws_rd=cr&ei=wZ_1Uq3EAYq4iQeNloEo#q=oneline+calculator http://www.algebrahelp.com/calculators/equation/ (Best!!! With steps and explanation )