Question

resolva as equações
a) 3x=48
b) x+5 = 28
c) 5x - 1 =19
d) 6x + 10 = 4
e) 4x + 12 =38
f) 8x - 12 = 72

me ajudeem please

Answer 1

Resposta:

A)

3x = 48

x = 48 / 3

x = 16

B)

x + 5 = 28

x = 28 - 5

x = 23

C)

5x - 1 = 19

5x = 19 + 1

5x = 20

x = 20 / 5

x = 4

D)

6x + 10 = 4

6x = 4 -10

6x = -6

x = -6 / 6

x = -1

E)

4x + 12 = 38

4x = 38 - 12

4x = 26

x = 26 / 4

x = 6,5

F)

8x - 12 = 72

8x = 72 + 12

8x = 84

x = 84 / 8

x = 10,5

Espero ter ajudado :)