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Afla numarul ncunscut 24x15+ a=420. 23x56-b=843. c-75x45=1000

Răspuns :

Violettacozariuc
24×15+a=420
360+a=420
a=420-360
a=60

VERIFICARE
24×15+60=420

23×56-b=843
1288-b=843
b=1288-843
b=445

VERIFICARE
23×56-445=843

c-75×45=1000
c-3375=1000
c=3375+1000
c=4375

VERIFICARE
4375-75×45=1000

SUCCES


















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