Question

6 supra 5 egal n supra 25

Answer 1

6 supra 5=n supra 25

5 ori n = 6 ori 25

n= 6 ori 25 supra 5 (iar 25 si 5 se simplifica)

n=6 ori 5

n=30

Answer 2

n= (6·25):5
n=150:5
n=30