Question

answer the question please

Answer 1

Well I can't seem to find P but value of x can be calculated

We know any number to the power 0 =1
So,
$1 \times {7}^{2x - 4} = 1 \times {7}^{0}$

On comparing
$2x - 4 = 0$
$x = 2$

Hope it helps

Yours Truly
Yumieo