10 a)
a+b=100
b+c=110
a+c=90
a+b+b+c+a+c=100+110+90=300
(a+b)+c+(a+b)+c=300
100+c+100+c=300
2c=300-200
2c=100
c=100:2
c=50
a+c=90
a+50=90
a=90-50
a=40
a+b=100
40+b=100
b=100-40
b=60
b)
a+b=84
b+c=64
a+c=34
a+b+b+c+a+c=84+64+34=182
(a+b)+c+(a+b)+c=182
84+c+84+c=182
2c+168=182
2c=182-168
2c=14
c=14:2
c=7
a+c=34
a+7=34
a=34-7
a=27
a+b=84
27+b=84
b=84-27
b=57
11)
x=3z
y=t:6
z=5*(126-8*7:14)-210
z=5*(126-56:14)-210
z=5*(126-4)-210
z=5*122-210=610-210
z=400
x=3z=3*400
x=1200
t=60*25-[190*5-(4*35+27*14):7]*37:74
t=60*25-[190*5-(140+378):7]*37:74
t=60*25-[190*5-518:7]*37:74
t=1500-(950-518:7)*37:74
t=1500-(950-74)*37:74
t=1500-876*37:74
t=1500-32412:74
t=1500-437
t=1062
y=1062:6
y=177
x*y=1200*177=212400
x+y=1200+177=1377
(x*y)-(x+y)=212400-1377=211023
Nu stiu daca munca mea de o ora merita 5 puncte!
