Question

(1/4)^(x-7)=2
помогите пожалуйста

Answer 1

${ \frac{1}{4} }^{x - 7} = 2 \\ {2}^{ - 2(x - 7)} = 2 \\ - 2x + 14 = 1 \\ - 2x = - 13 \\ x = 6.5$