# SOLUTION: dap5654@aol.com. I am in intermediate algebra. I am having trouble with equations with rational expressions. Could you help me solve this equation? {{{x/3 = 4/(x +1)}}}? I think

Algebra ->  Algebra  -> Rational-functions -> SOLUTION: dap5654@aol.com. I am in intermediate algebra. I am having trouble with equations with rational expressions. Could you help me solve this equation? {{{x/3 = 4/(x +1)}}}? I think       Log On

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 Algebra: Rational Functions, analyzing and graphing Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Rational-functions Question 200602: dap5654@aol.com. I am in intermediate algebra. I am having trouble with equations with rational expressions. Could you help me solve this equation? ? I think the answer is 3,4.Found 2 solutions by nerdybill, solver91311:Answer by nerdybill(6958)   (Show Source): You can put this solution on YOUR website! Cross multiplying we get: Factoring: x = {-4,3} Answer by solver91311(16877)   (Show Source): You can put this solution on YOUR website! If you think the solution to an equation is a particular number, then the quickest way to make sure is to substitute that number back into the equation and see if you have a true statement. You think that one of the roots is 3: . That one checks. Now let's try 4: . Oops. I guess we have to go back to the beginning. Step 1: Cross multiply: Step 2: Standard form of the quadratic: Step 3: Factor: and , so: Step 4: Zero Product Rule: or We have already checked 3, so lets try -4: . Checks. What's the lesson? Slow and steady, step by step. And never stop at "I think..." You aren't done until you are sure. John