Question

Questão 1. Resolva as seguintes equações:

a) X – 6 > 0

b) X + 5 ≥ 0

c) 4x – 3 < 0

d) 3.(x – 4) + 1 ≥ 2x -12

e) 2.(x – 2) + 3 < 5.(x + 1)
ajuda aí por favor​

Answer 1

Resposta:

a) $x-6>0\\x>6$    b) $x+5\geq 0\\x\geq-5$    c) $4x-3<0\\4x<3\\x<\frac{3}{4}\\x<0,75$    d) $3(x-4)+1\geq2x-12\\3x-12+1\geq2x-12\\3x-2x\geq-12+12-1\\x\geq-1$

e) $2(x-2)+3<5(x+1)\\2x-4+3<5x+5\\2x-5x<5+4-3\\-3x<6\\3x>-6\\x>\frac{-6}{3}\\x>-2$