Răspuns:43:1225:[(13*a-30):3-10]=7
(13*a-30):3-10 = 1225:7
(13*a-30):3-10 = 175
(13*a-30):3 = 175+10
(13*a-30):3 = 185
13*a-30 = 185*3
13*a-30 = 555
13*a = 555+30
13*a = 585
a = 585:13
a = 45
44:
[(a+270:3)x5+100]=600x1
[(a+90)x5+100]=600
(a+90)x5=600-100
(a+90)x5=500
(a+90)=500:5
a+90=100
a=100-90
a=10
Explicație pas cu pas:
