Question which-

1.2 Linear Equations in One Variable - Single-variable equations (multi-step)
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Which of the following is equivalent to 4 x plus 6 equals 12 ?

A.

2 x plus 4, equals 6

B.

x plus 3, equals 3

C.

3 x plus 2, equals 4

D.

2 x plus 3, equals 6

Which of the following is equivalent to ?

Medium-difficulty · SAT Math · Linear Equations in One Variable — Single-variable equations (multi-step). Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice D is correct. Dividing each side of the original equation by yields the fraction with numerator 4 x plus 6, and denominator 2, equals twelve halves, which simplifies to 2 x plus 3, equals 6.

Choice A is incorrect. Dividing each side of the original equation by gives 2 x plus 3, equals 6, which is not equivalent to 2 x plus 4, equals 6. Choice B is incorrect. Dividing each side of the original equation by  gives x plus three halves, equals 3, which is not equivalent to x plus 3, equals 3. Choice C is incorrect. Dividing each side of the original equation by gives four thirds x, plus 2, equals 4, which is not equivalent to 3 x plus 2, equals 4