Question

1)Resolva no caderno as inequeçaoes.

A) ×+2>25

B) 2×-9 <15

C) 2(×-1)>-2×+3

Answer 1

a) x>25-2 => x>23

b) 2x<15+9 => x<24/2 => x<12

c) 2x-2>-2x+3 => 2x+2x>3+2 => 4x>5 => x>5/4 => x>1,25

Answer 2

Boa tarde

veja:

a)

x + 2 > 25

x > 25 - 2

x > 23

b)

2x - 9 < 15

2x < 15 + 9 

2x < 24

x < 24 / 2

x < 12

c)

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

2x - 2 > - 2x + 3

2x + 2x > 3 + 2

4x > 5

x > 5 / 4