En resumen

2x + 7 + 2x - 1 = 2x + 2 + x + 10 2x + 2x - 2x - x = - 7 + 1 + 2 + 10 1x = 6 x = 6 : 1 x = 6 comprobante 2. 6 + 7 + 2. 6 - 1 = 30 2. 6 + 2 + 6 + 10 = 30 la diagonal mide 30.

Mejor respuesta

Diandraliz9978
10

2x + 7 + 2x - 1 = 2x + 2 + x + 10

2x + 2x - 2x - x = - 7 + 1 + 2 + 10

1x = 6

x = 6 : 1

x = 6

comprobante

2.

6 + 7 + 2.

6 - 1 = 30

2.

6 + 2 + 6 + 10 = 30

la diagonal mide 30.