Question

( 2 p + 20 ) + 12 = p + ( 40 + 5 )

Answer 1

Respuesta:

( 2 p + 20 ) + 12 = p + ( 40 + 5 )

2p+20 +12= p +45

2p +32 = p+45

2p - p = 45 -32

p = 13

saludos!!