Question

Resolva as equações abaixo: a) 8x + 2 = 34 b) 9x = 6x + 21 c) 5x - 6 = 4x + 11 d) 10x + 8 = x + 17​

Answer 1

a) 8x + 2 = 34

8x = 34 - 2

8x = 32

x = 32/8

x = 4

b) 9x = 6x +21

9x - 6x = 21

3x = 21

x = 21/3

x = 7

c) 5x - 6 = 4x + 11

5x - 4x = 11 +6

x = 17

d) 10x + 8 = x + 17

10x - x = 17 - 8

9x = 9

x = 9/9

x = 1  

Answer 2

Resposta:

a) 8x + 2 = 34

   8x = 34 - 2

   8x = 32

   x = 32/8

   x = 4

b) 9x = 6x + 21

   9x - 6x = 21

   3x = 21

   x = 21/3

   x = 7

   

c)5x - 6 = 4x + 11

 5x - 4x = 11 + 6

 x = 17

d)10x +8 = x + 17

  10x - x = 17 - 8

  9x = 9

  x = 9/9

  x = 1