Question

Resolva As inequações
A) 2x-3<5
B)5x+4>19
C)6x-5<3x+7
D)2x-9>3x-21

Answer 1

Resposta:

a) 2x-3<5

2x<5+3

2x<8

x<$\frac{8}{2}$

x<4

b) 5x+4>19

5x>19-4

5x>15

x>$\frac{15}{5}$

x>3

c) 6x-5<3x+7

6x-3x<7+5

3x<12

x<$\frac{12}{3}$

x<4

d) 2x-9>3x-21

3x-2x>-9+21

x>12