Question

1) Resolva as equações a seguir:
a)18x - 43 = 65
b) 23x - 16 = 14 - 17x
c) 3 + x = 0
d) 23x + 2 = 2
e) 12 – 7 + 4x = 25
f) 5x – 3x = 30
g) 4x + 10 = 45 – 3x

Answer 1

Resposta:

a) 6,  b) 0.75,  c) -3,  d) 0,  e) 5,  f) 15,  g) 35

Explicação passo-a-passo:

a) 18x - 43 = 65

18x = 65 + 43

18x = 108      

x = 6

b) 23x - 16 = 14 - 17x

23x + 17x = 14 + 16

40x = 30

x = 0.75

c) 3 + x = 0

x = 0- 3

x = -3

d) 23x + 2 = 2

23x = 2 - 2

23x = 0

x = 0

e) 12 – 7 + 4x = 25

4x = 25 - 12 + 7

4x = 20

x = 5

f) 5x – 3x = 30

2x = 30

x = 15

g) 4x + 10 = 45 – 3x

4x - 3x = 45 - 10

x = 35