Could Someone help me with this math problem?

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1

<p>Does anyone have a proper solution for:</p>

<p>If p + pq is 4 times p - pq, which of the following has exactly one value? (pq doesn't equal 0)</p>

<p>A) p, B) q, C) pq, D) p + pq, E) p - pq</p>

<p>Thanks</p>

2

<p>Answer: B (q=3/5)</p>

3

<p>(p+pq)/(p-pq)=4</p>

<p>Factor out p from numerator and denominator, and since it’s not 0, cancel it…</p>

<p>(1+ q) /(1-q) = 4</p>

<p>1 + q = 4 - 4q</p>

<p>5q = 3</p>

<p>Which solves for a unique value of q = 3/5</p>