1. 5+[16-(9:a*8+7)]*6=4:2+9
=2+9
=11
[16-(9:a*8+7)]*6=11-5=6
16-(9:a*8+7)=1
9:a*8+7=15
9:a*8=15-7=8
9:a=1
a=9:1
a=9
b=4*9=36
36:2-2*9=18-18=0
diferenta=0
4. D=dif
S=suma
S:D=4 rest 27
S=4*D+27
D=S-300, S=D+300
D+300=4D+27
4D-D=300-27=273
3D=273
D=273:3
D=91
S=91+300=391
a |----|----91 } 391
b |----|
391-91=300( suma a 2 segm egale)
300:2=150 ( 1 segment)
b=150
a=150+91
a=241
3. 175=S/3-13
175+13=S/3=188
S=3*188
S=564
564-175=389 lei i-au ramas
