Question

3(x -1 ) -2 (x -2 ) +5 (x + 4 ) = - 45


preciso da resposta por favor e o cálculo tbm​

Answer 1

Resposta:

3(x -1 ) -2 (x -2 ) +5 (x + 4 ) = - 45

3x-3-2x+4+5x+20=-45

3x-2x+5x = 3-4-20-45

6x = -1-65

6x=-66

x=-66/6

x=-11