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What simplified equation is obtained by dividing 2x + 2y = 14 by 2?

Answer and explanation

Correct answer: x + y = 7

An equation remains equivalent when every term on both sides is divided by the same non-zero number. Divide each term of 2x + 2y = 14 by 2: (2x)/2 + (2y)/2 = 14/2. Each coefficient and the constant simplify, giving x + y = 7. Therefore option B is correct. The operation must be applied to every term, not just one part of the equation. Option A leaves 14 unchanged, while option C changes only the coefficient of x and option D changes only the coefficient of y. The simplified equation has exactly the same solutions as the original because division was by the non-zero number 2.

Related tags

Linear EquationsEquivalent EquationSimplificationAlgebraic MethodsAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two VariablesMathematics

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