Question

Dada a inequação do 1° grau 3(2x - 2) + (x - 1) < 4 *

Answer 1

Resposta:

$3(2x-2)+(x-1)<4\\\\3(2x-2)+x-1<4\\\\3(2x-2)-1+1<0\\\\3(2x-2)<4+1\\\\3(2x-2)+x<5\\\\7x-6<5\\\\7x-6+6<0\\\\7x<5+6\\\\7x<11\\\\\frac{7x}{7} <\frac{11}{7} \\\\x<\frac{11}{7}$