If [x327] [ x 3 2 7 ] = 15, find the value ..

Question 1 Report

If $[\begin{array}{cc} x & 3 \\ 2 & 7 \end{array}]$ = 15, find the value of x.

Answer Details

$[\begin{array}{cc} x & 3 \\ 2 & 7 \end{array}]$ = 15
x x 7 - 2 x 3 = 15
7x - 6 = 15
7x = 15+6
7x = 21
x = 21/7x = 3

If [x327] [ x 3 2 7 ] = 15, find the value of x.