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5 votes
((x+4/7))-((x+3)/(x+5))

User Zensar
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1 Answer

5 votes
Solve for x 4+7/x=5/34+7x=534+7x=53Move all terms not containing xx to the right side of the equation....7x=737x=-73Set up the rational expression with the same denominator over the entire equation....213x=7x3x213x=-7x3xSince the expression on each side of the equation has the same denominator, the numerators must be equal.21=(7x)21=-7xSince xx is on the right side of the equation, switch the sides so it is on the left side of the equation.(7x)=21-7x=21Multiply 77 by −1-1 to get −7-7.−7x=21-7x=21Divide each term by −7-7 and simplify....x=−3x=-3Check that all solutions found are valid and are part of the domain by substituting them into the original equation.x=−3x=-3 your welcome
User Upasana
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