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If y = 2x - 1, what is the value of x in terms of y?

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Math Expert
Joined: 02 Sep 2009
Posts: 53748
If y = 2x - 1, what is the value of x in terms of y?  [#permalink]

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07 Mar 2019, 00:04
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Difficulty:

25% (medium)

Question Stats:

78% (00:21) correct 22% (00:26) wrong based on 9 sessions

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If $$y = 2x - 1$$, what is the value of x in terms of $$y$$?

A. $$\frac{y}{2} - 1$$

B. $$\frac{y}{2} - \frac{1}{2}$$

C. $$\frac{y}{2} + \frac{1}{2}$$

D. $$\frac{y}{2} + 1$$

E. $$y + \frac{1}{2}$$

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Joined: 15 Dec 2018
Posts: 30
If y = 2x - 1, what is the value of x in terms of y?  [#permalink]

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07 Mar 2019, 00:08
IMO C

(Y+1)/2 can also be written as (Y/2)+(1/2)

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If y = 2x - 1, what is the value of x in terms of y?   [#permalink] 07 Mar 2019, 00:08
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