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Which option is equal to (2(3x-y)+4(x+2y)-5x)?

Answer and explanation

Correct answer: \(5x+6y\)

On expanding, \(2(3x-y)=6x-2y\) and \(4(x+2y)=4x+8y\). Therefore, \(6x-2y+4x+8y-5x=(6+4-5)x+(-2+8)y=5x+6y\). In option B, the sign of the \(y\)-term is incorrect because \(-2y+8y=+6y\). Exam tip: after removing brackets, combine terms with the same variable separately.

Related tags

Algebraic ExpressionsSimplifying ExpressionsDistributive PropertyLike TermsPolynomialsIntroduction To PolynomialsMathematicsClass 9 Mcq

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