Question

Resolva as inequações
A)4+2x<1+5 x
B)5x-7>2•(x-3)-3x
C)3x+1/2 ≤ 2x-3/3

Answer 1

Boa noite

A) 4 + 2x < 1 + 5x

3x > 3
x > 1

B) 5x - 7 > 2*(x - 3) - 3x

5x - 2x + 3x > 7 - 6 
6x > 1
x > 1/6 

C) (3x + 1)/2 ≤  (2x - 3)/3

9x + 3 ≤ 4x - 6
9x - 4x ≤ -9 
5x ≤ -9
x ≤ -9/5 

Answer 2

Olá boa noite!

A)

4+2x<1+5 x
2x - 5x < 1 - 4
- 3x < - 3 ×(-1)
3x > 3
x > 3 / 3
x > 1

B)

5x-7>2•(x-3)-3x
5x-7>2x-6-3x
5x-2x+3x>-6+7
6x>1
x>1/6

C)

3x+1/2 ≤ 2x-3/3
9x+3 ≤ 4x-6
9x-4x ≤ -6-3
5x ≤ -9
x ≤ -9/5



Espero ter ajudado amigo =)

Abraços!



Dúvidas? Comente.