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Which equation is obtained by simplifying (6x+3y=12)?

Answer and explanation

Correct answer: (2x+y=4)

The governing concept is preserving an equation while reducing it to an equivalent simpler form. Every term on both sides must be divided by the same non-zero common factor. In 6x + 3y = 12, the common factor is 3. Dividing each term by 3 gives 6x/3 + 3y/3 = 12/3, hence 2x + y = 4. Therefore option B is correct. Option A divides the coefficients but leaves the constant 12 unchanged, option C changes the coefficient of x incorrectly, and option D leaves the original y coefficient and constant. The simplified equation has exactly the same solutions as the original because the same non-zero operation was applied to both sides.

Related tags

Linear EquationsAlgebraic SimplificationEquivalent EquationCommon FactorAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two VariablesMathematics

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