MathDB
Exponential x,y

Source:

February 14, 2009

Problem Statement

If 8\cdot2^x \equal{} 5^{y \plus{} 8}, then when y \equal{} \minus{} 8,x \equal{} (A)\ \minus{} 4 \qquad(B)\ \minus{} 3 \qquad(C)\ 0 \qquad(D)\ 4 \qquad(E)\ 8
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