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What is the simplified form of ((2x+3)+(4x-7)-(x+5))?

Answer and explanation

Correct answer: \(5x-9\)

A minus sign occurs before the last bracket, so the signs of both terms inside it must change: \((2x+3)+(4x-7)-(x+5)=2x+3+4x-7-x-5\). Combining like terms gives \((2x+4x-x)=5x\) and \((3-7-5)=-9\). Therefore, the simplified form is \(5x-9\). The option \(5x+1\) results from handling the constant \(-5\) incorrectly. Exam tip: whenever a bracket is preceded by a minus sign, reverse the sign of every term inside it.

Related tags

Algebraic ExpressionsPolynomialsLike TermsAddition And SubtractionLinear ExpressionsIntroduction To PolynomialsMathematicsClass 9 Mcq

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