Question

Observe o exemplo e resolva as equações, sendo que •X• um numero racional.
•Exemplo:
x
--- =5
3
x=5-3
x=15 então: S=(15)
_____Resolva :
a)x
---=8
2

B)x
----= -8
2

C)x
----= -5
4
D)3x
------=9
4

e)2x
-----= -4
5

f)2x
------= -10
3 ​

Answer 1

Resposta:

a) x=8.2

x=16

b) x=-8.2

x=-16

c) x=-5.4

x=-20

d) 3x=9.4

3x=36

x=36/3

x=12

e) 2x=-4.5

2x=-20

x=-20/2

x=-10

f)2x=-10.3

2x=-30

x=-30/2

x=-15

Answer 2

a) x = 8

2

x = 2.8

x = 16

b) x = -8

2

x = -8.2

x = -16

c) x = -5

4

x = -5.4

x = -20

d) 3x = 9

4

3x = 4.9

3x = 36

x = 36/3

x = 12

e) 2x = -4

5

2x = -4.5

2x = -20

x = -20/2

x = -10

f) 2x = -10

3

2x = -10.3

2x = -30

x = -30/2

x = -15

❤️ Prontinho ❤️

31/10/21