Salut ^_^
a)
94+x=100
x=100-94
x=6
y:17=6
y=17×6
y=102
56-28:(x+2)=54
28:(x+2)=56-54
28:(x+2)=2
x+2=28:2
x+2=14
x=14-2
x=12
(38+y)×3=168
38+y=168:3
38+y=56
y=38+56
y=94
28×(x+235)=6860
x+235=6860:28
x+235=245
x=245-235
x=10
y-37=13
y=37+13
y=50
B)
A=43+3x+3y
A=43+3×6+3×102
A=43+24+306
A=67+306
A=373
B=[152-5(x+y)]
B=[152-5×(12+94)]
B=(152-5×106)
B=(152-530) (de aici nu se poate,imi pare rau)
C=300-(5y-3x)
C=300-(5×10-3×50)
C=300-(50-150)
C=300(iar nu se poate)
