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{[(5xa-194)x5-3]x19+12}:25=2

Răspuns :

CosmoteRo
(((5xa-194)x5-3)x19+12):25=2
 (((5xa-194)x5-3)x19+12)= 2x25                                    
                                      =50
((5xa-194)x5-3)x19=50-12
                               =38
((5xa-194)x5-3)=38:19
                        =2
(5xa-194)x5=2+3
                  =5
5xa-194=5:5
5xa-194=1
5xa=1+194
5xa=195
a=39
Moldcell20
{[(5a-194)*5-3]*19+12}:25=2
{[(5a*5-194*5)-3]*19+12}:25=2
{[(25a-970)-3]*19+12}:25=2
{[25a+(-3-970)]*19+12}:25=2
{(25a-973)*19+12}:25=2
[(475a-18487)+12]:25=2
[475a+(12-18487)]:25=2
[25(475a-18475)]/25=25*2
475a-18475=25*2
475a-18475=50
475a=50+18475
475a=18525
a=18525/475
a=39

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