Question

простенький логарифм! пллз$log _{2x+3} 7=0,5$

Answer 1

$log_{2x+3}7=0.5\ sqrt{2x+3}=7\ 2x+3=49\ 2x=46\ x=23$

Answer 2

$sqrt{2x+3} = 7$
2x+3 = 49
2x = 46
x = 23
Ответ: 23