Discussion

If x ≠ 3/4, which one of the following will equal −2 when multiplied by Image

 

(A) 5 - 4 x 4
(B)...
(C)...
(D)...
(E)...
(F)...
*This question is included in Nova Math - Problem Set A: Substitution, question #15

The solution is

Posted: 07/03/2012 11:47
Why did you pick x=0? Can you sub with any number that isn't 3/4? I picked 1 as my sub and it didn't reach the same answer.
Image Not Available
Contributor
Posted: 07/03/2012 20:06
futuremidwife, the answer should be the same whether you pick 0 or 1. 0 is easier to work with.

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