Question

Решите уровнение :

1) 1,5x - 3=2
2) 8+ 2/3^y = 14

Answer 1

$1.5x-3=2 \\\ 1.5x=2+3 \\\ 1.5x=5 \\\ x=\dfrac{5}{1.5} \\\ x=\dfrac{10}{3} \\\ x=3\dfrac{1}{3}$

$8+\dfrac{2}{3^y} = 14 \\\ \dfrac{2}{3^y} = 14-8 \\\ \dfrac{2}{3^y} =6 \\\ 3^y=\dfrac{2}{6} \\\ 3^y=\dfrac{1}{3} \\\ 3^y=3^{-1} \\\ y=-1$