Question

Qual o valor de 'x'??
log10 (2x - 5) = 0

Answer 1

$log_1_0(2x-5)=0\\\\ 10^0 = 2x-5\\\\ 1 = 2x-5\\\\ 2x = 6\\\\ x = \frac{6}{2}\\\\ \boxed{x=3}$

Answer 2

log (2x - 5) = 0
    ¹⁰
10⁰ = 2x - 5
1 = 2x - 5
2x - 5 = 1
2x = 1 + 5
2x = 6
x = 6/2
x = 3