Question

If 2/(a − 1) = 4/y , and y ≠ 0 where a ≠ 1, what is y in terms of a?
A) y = 2a − 2
B) y = 2a − 4
C) y = 2a − 1/2
D) y = 1/2 (a) + 1

Answers

  1. y in terms of a is (A)  y = 2a − 2.

    What is an equation?

    • An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =.
    • A mathematical statement made up of two expressions joined by an equal sign is known as an equation.
    • 3x – 5 = 16 is an example of an equation.
    • We get the value of the variable x as x = 7 after solving this equation.
    To find y in terms of a:
    Given:
    • 2/(a – 1) = 4/y
    • 2y = 4(a – 1) (Cross multiplication)
    • 2y = 4a – 4
    • y = 2a – 2 (Take 2 as common)
    Therefore, y in terms of a is (A)  y = 2a − 2.
    Know more about equations here:
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