GMAT Math Practice — Algebra Questions
What is the value of a ?
|(1)||a + b = 6|
|(2)||b + a = 4|
Answer and Analysis
The correct response is (E). The two equations given are actually the same equation. (One way to confirm this is to multiply each term in the second equation by .) Given one linear equation in two variables, you cannot determine the value of one variable without knowing the value of the other. Thus, a has an infinite number of possible values.