Question

1) Resolva em R as equações a seguir:
a) 3 + x = 8
b) 23x + 2 = 2
c) -12 – 7 + 4x = 25
d) 5x – 3x = 30
e) 4x + 10 = 45
f) x/2 = 18
g) x/4 + 3 = 6

Answer 1

Resposta:

A) 3 + x = 8

x = 8 - 3

x = 5

B) 23x + 2 = 2

23x = 2 - 2

23x = 0

x = 0/23

x = 0

C) -12 - 7 + 4x = 25

4x = 25 + 12 + 7

4x = 44

x = 44/4

x = 11

D) 5x - 3x = 30

2x = 30

x = 30/2

x = 15

E) 4x + 10 = 45

4x = 45 - 10

4x = 35

x = 35/4

x = 8,75

F) x/2 = 18

x = 18 • 2

x = 36

G) x/4 + 3 = 6

x/4 = 6 - 3

x/4 = 3

x = 3 • 4

x = 12

Qualquer dúvida eu explico :]