Question

Решите уравнение 3^- 131- 5x = 0, 375 * 8 ^ - 131 - 5x

Answer 1

$3^{-131-5x}=0,375*8^{-131-5x}\\\\ \frac{3^{-131-5x}}{8^{-131-5x}}=0,375 \\\\( \frac{3}{8} )^{-131-5x}=0,375\\\\(0,375)^{-131-5x}=(0,375)^1\\\\-131-5x=1\\\\5x=-131+1\\\\5x=-130\\\\x=-130:5\\\\x=-26$