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Nicu133
a fost răspuns

a+1000-4721+2014=7002

Răspuns :

a+1000-4721+2014= 7002 | -2014
a+1000-4721= 4988 | +4721
a+1000= 9709| -1000
a= 8709
Scalambaita
a+1000-4721=7002-2014
a+1000-4721=4988
a+1000=4988+4721
a+1000=9709
a=9709-1000
a=8709