Question

5X-15-2X-8=4x

2(3 x + 1 ) 6+4x

calcule o resultado e coloque as contas

Answer 1

Explicação passo-a-passo:

a)

5x - 15 - 2x - 8 = 4

5x - 2x - 15 - 8 = 4

3x - 23 = 4

3x = 4 + 23

3x = 27

x = 27/3

x = 9

b)

2.(3x + 1) = 6 + 4x

6x + 2 = 6 + 4x

6x - 4x = 6 - 2

2x = 4

x = 4/2

x = 2

Answer 2

a)

5x - 15 - 2x - 8 = 4x

3x - 23 = 4x

4x - 3x = - 23

x = - 23

b)

2(3x + 1) = 6 + 4x

6x + 2 = 6 + 4x

6x - 4x = 6 - 2

2x = 4

x = 4/2

x = 2

Resposta:

a) x = - 23

b) x = 2