Question

dada a equação 2^x+3 = 1/8, determine o valor de x

Answer 1

$2^{x+3} = \frac{1}{8} \\ 2^{x+3} = 8^{-1} \\ 2^{x+3} = (2^{3} )^{-1} \\ 2^{x+3} = 2^{-3} \\ \\ x+3 = -3 \\ x = -3 - 3 \\ x = -6$