Question

Resolva a inequação no conjunto (Q). a)x+8>12 b)x+7 <- 5 c)4x-15 <1 d)3x-10 -> x-3 e)4 (x-2)<- 0 f)3x+1 ->2 (x-3) g)1x/5+ 3x ->4 h) 1x/2 +1x/5 <- 5 (1-1x/4) i) 8x+4 -> 4x+24 j)2-4x -> x-10 k)4 (2x+3) <- 6 (x+4) l) 8 (x+3) >12 (1+x)

Answer 1

a) x > 12 - 8
x > 4
b) x < -5 - 7
x < -12
c) 4x < 1 +15
4x < 16
d) 3x - x > -3 + 10
2x > 7
x > 7/2
e) 4x + 8 < -0
4x < -0 - 8
4x < -8
x < -8/4 | 2/1 | 2
x < -2
f) 3x > 2 - 1
3x > 1
x > 1/3
g) e h) não consigo resolver aqui
i) 8x - 4x > 24 - 4
4x > 20
x > 20/4 | 5/1 | 5
x > 5
j) -4x - x > -10 - 2
-5x > -12 ×(-1)
5x < 12
x > 12/5
k) 8x + 12 < -6x + 24
8x + 6x < 24 - 12
14x < 12
x < 12/14 | 6/7
l) 8x + 24 > 12 + 12x
8x - 12x > 12 - 24
-4x > - 12 ×(-1)
4x < 12
x < 12/4
x < 3