Question

2^3 *(x-7)=2^4 *19 ;  (4x-13)*7=7^2

Answer 1

$2^3 (x-7)=2^4 cdot19 \ x-7=2 cdot19 \ x-7=38 \ x=45$

$7 (4x-13)=7^2 \ 4x-13=7 \ 4x=20 \ x=5$