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Math Question for Sunday, November 23rd, 2014

If 7*y* = 2*x* – 5, then *x* = ?

**A.** 5*y* + 5

**B.** *y* – 5

**C.** *y* + 5

**D.**

**E.**

## Incorrect

If *x* = 5*y* + 5, then 2*x* – 5 = 2(5*y* + 5) – 5 = 10*y* + 10 – 5 = 10*y* + 5, but 10*y* + 5 7*y* for all *y*, so *x* 5*y* + 5.

## Correct!

**The correct answer is E.**
7*y* = 2*x* – 5, so 2*x* = 7*y* + 5, *x* = .