Question

resolva

4x+2(-3X -1) < 8x + 12



resolva


3(x +2)/5 + x/3 = 4x + 7x/5

Answer 1

Olá, tudo bem?

a)

$4x+2(-3x -1) < 8x + 12\to 4x-6x-2<8x+12\to\\\\-10x<14\to\boxed{x<-\dfrac{7}{5}}$

b)

$\dfrac{3(x +2)}{5} + \dfrac{x}{3} = 4x + \dfrac{7x}{5}\to\\\\\dfrac{9x+18+5x=60x+21x}{\not1\not5}\to\\\\9x+5x-60x-21x=-18\to\\\\-67x=-18\to\boxed{x=\dfrac{18}{67}}$

É isso!! :)