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a fost răspuns

Afla numerele necunoscute : a +124x84=230x65 , 39x280-b=20x80 , c-320x60=425x40 , 57x620-d=40x350

Răspuns :

Flower02
a+124x84=230x65 a+10416=14950 a=14950-10416 a=4534; 39x280-b=20x80 10920-b=1600 b=10920-1600 b=9320 c-320x60=425x40 c-19200=17000 c=17000+19200 c=36200 57x620-d=40x350 35340-d=14000 d=35340-14000 d=21340

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