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9c + 12 = d

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Carcass
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9c + 12 = d [#permalink] New post   30 May 2022, 03:36
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\(9c + 12 = d\)

Quantity A
Quantity B
\(\frac{d-12}{9}\)
c


A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

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C
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GreenlightTestPrep
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9c + 12 = d [#permalink] New post   30 May 2022, 05:30
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Carcass wrote:
\(9c + 12 = d\)

Quantity A
Quantity B
\(\frac{d-12}{9}\)
c




Strategy: Judging from the two quantities (comparing an expression involving variable \(d\) to variable \(c\) alone), it looks like we need to take the given equation and isolate the variable \(c\)

Take: \(9c + 12 = d\)
Subtract \(12\) from both sides of the equation: \(9c = d - 12\)
Divide both sides of the equation by \(9\) to get: \(c = \frac{d - 12}{9}\)

Answer: C
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Re: 9c + 12 = d [#permalink] New post   31 May 2022, 05:11
1
Solving for c, we get the same expression as an quantity A

Answer is (C)
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gmatclubot
Re: 9c + 12 = d [#permalink]
31 May 2022, 05:11
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