Question

Quanto é 3×-4×-13=14 ?

Answer 1

$3x - 4x - 13 = 14 \\ \\ - x - 13 = 14 \\ \\ x = - 13 - 14 \\ \\ x = - 27$

Answer 2

Olá,

3x − 4x − 13 = 14

3x + −4x + −13 = 14

(3x + −4x) + (−13) = 14

− x + −13 = 14

− x − 13 = 14

− x − 13 + 13 = 14 + 13

− x = 27

- x / -1 = 27 / -1

x = -27