Question

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



5x-40=2-x

Answer 1

Resposta:

1; 7.

Explicação passo a passo:

4(2x - 1) = 3(5x - 2) - 5

8x - 4 = 15x - 6 - 5

8x - 15x = - 6 - 5 + 4

- 7x = - 11 + 4

- 7x = - 7  .(-1)

7x = 7

x = 7 : 7

x = 1.

5x - 40 = 2 - x

5x + x = 2 + 40

6x = 42

x = 42 : 6

x = 7.