Question

17. Resolva as seguintes inequações, em R:

a)
$2x + 1 \leqslant x + 6$

b)
$2 - 3x \geqslant x + 14$

c)
$2(x + 3) > 3(1 - x)$

d)
$3(1 - 2x) < 2(x + 1) + x - 7$

e)
$(x + 3) > ( - x - 1)$
​

Answer 1

1) 2x+1=x+6

x=5

2) 2-3x=x+14

x=12

3) 2(x+3)=3(1-x)

2x+6=3x-3x

5x=3

x=5/3

4) 3(1-2x)=2(x+1)+x-7

3-6x=2x+2+x-7

3x=8

x=3/8

5) x+3=-x-1

2x=4

x=2/4