Question on: WAEC Mathematics - 2010

What is the value of x when y = 5?

A
8
B
9
C
10
D
11
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Correct Option: A

when y = 5; x = ?; y = (\frac{1}{2})x + 1

5 = (\frac{1}{2})x + 1

5 - 1 = (\frac{1}{2})x

4 = (\frac{1}{2})x

x = 4 x 2

x = 8

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