Question

responda:

a) 4x + 2 = 38

b) 9x = 6x + 12

c) 5x - 1 = 3x + 11

d) ) 2x + 8 = x + 13

e) 4x + 8 = 16 - 2x

me ajuda pfvr


​

Answer 1

Resposta:

a) 4x + 2 = 38

4x = 38 - 2

4x = 36

x = 36/4

x = 9

b) 9x = 6x + 12

9x - 6x = 12

3x = 12

x = 12/3

x = 4

c) 5x - 1 = 3x + 11

5x - 3x = 11 + 1

2x = 12

x = 12/2

x = 6

d) ) 2x + 8 = x + 13

2x - x = 13 - 8

x = 5

e) 4x + 8 = 16 - 2x

4x + 2x = 16 - 8

6x = 8

x = 8/6

x = 1,33...