Răspuns :
A+(78×3)-(39×2)=29737
A+234-78=29737
A+234=29737+78
A+234=29 815
A=29815-234
A=29581
a+(78x3)-(39x2)=29737
a+234-78=29737
a=29737-234+78
a=29503+78
a=29581
a+234-78=29737
a=29737-234+78
a=29503+78
a=29581