Question

5.(3x - 1) - 2.(4x + 6) = 4​

Answer 1

Resposta:

3

Explicação passo-a-passo:

5.(3x - 1) - 2.(4x + 6) = 4

5.3x + 5.(-1) -2.4x -2.6 = 4

15x -5 -8x -12 = 4

15x - 8x -5 -12 = 4

7x - 17 = 4

7x = 4 + 17

7x = 21

x = 21/7 = 3