Question

1- Resolva as equações a seguir

a) 18x - 43 = 65
b) 23x - 16 = 14 - 7x
c) 2 x + 4 x + x + 2 = 2x + 12 ​

Answer 1

Resposta:

a) x = 6

b) x = 1

c) x = 2

Explicação passo-a-passo:

a)

18x = 65 + 43

18x = 108

x = 108/18

x = 6

b)

23x - 16 = 14 - 7x

23x + 7x = 14 + 16

30x = 30

x = 30/30

x = 1

c)

2x + 4x + x + 2 = 2x + 12

7x + 2 = 2x + 12

7x - 2x = 12 - 2

5x = 10

x = 10/5

x = 2