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What is obtained by subtracting (2x+7) from (8x-3)?

Answer and explanation

Correct answer: \(6x-10\)

Subtracting \((2x+7)\) from \((8x-3)\) gives \((8x-3)-(2x+7)\). Since there is a minus sign before the second bracket, the signs of both its terms change: \(8x-3-2x-7=6x-10\). Hence, \(6x-10\) is correct. \(6x+4\) may result from incorrectly combining \(-3\) and \(+7\). Exam tip: When removing brackets after a minus sign, change the sign of every term inside the bracket.

Related tags

Algebraic ExpressionsPolynomialsSubtraction Of ExpressionsLike TermsSign RulesIntroduction To PolynomialsMathematicsClass 9 Mcq

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