Log2(x-1) log2(6)=log2(18)

Question

Log2(x-1) log2(6)=log2(18)

Comments

Между логарифмами какой знак?

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Знак +

Answer 1

Log₂(x-1)+log₂6=log₂18
log₂((x-1)*6)=log₂18
6*(x-1)=18
x-1=3
x=4.