Question

2∧x-8*2∧-x=7
помогите

Answer 1

2^х -8*2^-x = 7
2^x - 2^3*2^-x = 7
2^x - 2^(3-x) = 2^3 - 2/2
2^(x+1) - 2^(4-x) = 2^4 - 2^1
x+1 - 4 + x = 4 - 1
2x = 6
x=3

Answer 2

Спасибо