Question

De o valor de x nas igualdades:

Answer 1

Resposta:

a) $10x=1\quad :\quad x=\frac{1}{10}\quad \left(\mathrm{Decimal}:\quad x=0.1\right)$

b) $x^3=8\quad :\quad x=2$

c) $7^x=7\quad :\quad x=1$