Question

aflati a din egalitatea (396-372):12+(a·14-70)·20=402​

Answer 1

Răspuns:

a= 45/7 = 6.43

$(396-372):12+(14a-70)*20=402\\24:12+(14a-70)*20=402\\2+(14a-70)*20 =402\\(14a-70)*20=400\\14a-70 = 20\\14a=90\\a=\frac{90}{14} \\a=\frac{45}{7}$

Answer 2

Răspuns:

Ai rezolvarea in atașament!