Question

resolva as inequação abaixo
a) 3x+2 <81=
b) (1/4) x-1> (1/4) 3 =

Answer 1

a)

$3x + 2 < 81\\3x < 81 - 2\\3x < 79\\ \\x < \frac{79}{3}$

b)

$\frac{1}{4} x - 1 > \frac{3}{4}\\\\\frac{1}{4}x > \frac{3}{4} + 1\\\\\frac{1}{4}x > \frac{7}{4}\\\\x > 7$