passpadi

2010

Mathematics

JAMB

If ∣∣∣x237∣∣∣ = 15, find the value of x

A.

3

B.

4

C.

5

D.

2

Correct Answer: 3

Explanation

x x 7 - 2 x 3 = 15 7x - 6 = 15 7x = 15+6 7x = 21 x = 21/7 x = 3

x x 7 - 2 x 3 = 15 7x - 6 = 15 7x = 15+6 7x = 21 x = 21/7 x = 3
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