Question on: JAMB Mathematics - 2010
If (\begin{vmatrix} x & 3 \ 2 & 7 \end{vmatrix}) = 15, find the value of x
A
4
B
5
C
2
D
3
Ask EduPadi AI for a detailed answer
Correct Option: D
If (\begin{vmatrix} x & 3 \ 2 & 7 \end{vmatrix}) = 15
7x - 2 x 3 = 15
7x - 6 = 15
7x = 15 + 6 = 21
therefore x = (\frac{21}{7})
= 3
Add your answer
Please share this, thanks!
No responses