Question

log2 (4 - x) = 7
log5 (4 + x) = 2
log5 (5 - x) = log 3
log2 (15+ x) = log2 3​

Answer 1

log₂(4 - x) = 7

2⁷ = 4 - x

128 = 4 - x

x = 4 - 128

x = -124

Ответ: x = -124