Question

a) 4x+2=38

b) 9x= 6x + 12

c) 5x-1=3x + 11

d) 2x+8 = x + 13

Answer 1

Resposta:

a) 9 b) 4 c) 6 d) 5

Explicação passo a passo:

a) 4x + 2 = 38

4x = 38 - 2

4x = 36

x = 36

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

5x = 3x + 12

5x - 3x = 12

2x = 12

x = 12/2

x = 6

d) 2x + 8 = x + 13

2x = x + 13 - 8

2x = x + 5

2x - x = 5

x = 5