Question

5x – 5 = 20 - 2x con comprobacion porfavor​

Answer 1

Respuesta:

5x - 5 = 20 - 2x

5x + 2x = 20 + 5

7x = 25

x = 25/7

Comprobación

5x - 5 = 20 - 2x

5(25/7) - 5 = 20 - 2(25/7)

$\frac{125*1 - 7*5}{7} = \frac{20*7 - 50}{7} \\ \\ \frac{125 - 35}{7} = \frac{140 - 50}{7} \\ \\ \frac{90}{7} = \frac{90}{7}$

Si coinciden