Question

5x mas 2 sobre 3 igual a 7(x menos 4)​

Answer 1

Respuesta:

$\frac{5x + 2}{3} = 7(x - 4) \\ \\ \frac{5x + 2}{3} = 7x - 28 \\ \\ 3 \times ( \frac{5x + 2}{3} ) = 3 \times (7x - 28) \\ \\ 5x + 2 = 21x - 86 \\ 5x - 21x = - 86 - 2 \\ - 16x = - 88 \\ \\ x = \frac{86}{16} \\ \\ x = \frac{43}{8}$