a)y+23,93=41,54-12,37 b)72,75-(y+13,26)=34,38 c)y-13,5=19,3+8,57
y+23,93=53,91 (y+13,26)=72,75-34,38 y-13,5=27,87
y =53,91-23,93 (y+13,26)=29,98 y =27,87+13,5
y =29,98 y =29,98-13,26 y =41,37
y =16,72
d)y+15,3=57,38-24,4 e)y-(4,56+6,7)=7,89 g)45,32-(y+12,34)=17,65
y+15,3=32,98 y-11,26 =7,89 (y+12,34)=45,32-17,65
y =32,98-15,3 y =7,89+11,26 (y+12,34)=27,67
y =17,68 y =19,15 y =27,67-12,34
y =15,33
Hok tốt!
@Kaito Kid