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If 5x – 8 = 12 and x = y + 3, then y =

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Carcass
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If 5x – 8 = 12 and x = y + 3, then y = [#permalink] New post   29 Nov 2021, 05:50
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If 5x – 8 = 12 and x = y + 3, then y =

A.\(\frac{4}{5}\)

B. 1

C. \(\frac{17}{5}\)

D. 4

E. 7
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B
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GreenlightTestPrep
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Re: If 5x – 8 = 12 and x = y + 3, then y = [#permalink] New post   29 Nov 2021, 06:38
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Carcass wrote:
If 5x – 8 = 12 and x = y + 3, then y =

A.\(\frac{4}{5}\)

B. 1

C. \(\frac{17}{5}\)

D. 4

E. 7

Given: 5x – 8 = 12
Replace x with y + 3 (since we're told x = y + 3) to get: 5(y + 3) – 8 = 12
Add 8 to both sides: 5(y + 3) = 20
Divide both sides by 5 to get: y + 3 = 4
Subtract 3 from both sides: y = 1

Answer: B
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gmatclubot
Re: If 5x – 8 = 12 and x = y + 3, then y = [#permalink]
29 Nov 2021, 06:38
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