Question

x - 2(x-1) < 2

6x + 3< 3x + 18

8(x + 3) > 12 (1-x)

(inequação)

Answer 1

a) x - 2*(x - 1) < 2
x - 2x + 2 < 2
x - 2x < 2 - 2
-1)* - x < 0
x > 0

b) 6x + 3 < 3x + 18
6x - 3x < 18 - 3
3x < 15
x < 15/3
x < 5

c) 8*(x + 3) > 12*(1 - x)
8x + 24 > 12 - 12x
8x + 12x > 12 - 24
20x > -12
x > -12/20 :4
x > -3/5