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Laurabobok
a fost răspuns

Aflați termenul necunoscut :195x8+b =2 450; c-(306x8)=420;d+(315x8)=12 300

Răspuns :

Euu12
b=2450-1560=890
c=2448+420=2868
d=12300-2520=9780
Samitundrea
195*8+b=2450 
b=195*8=1560
b=2450-1560=890
b=890
V.1560+890=2450
c-(306*8)=420
c=306*8=2448
c=2448+420=2868
c=2868
V.2868-420=2448
d+(315*8)=12300
d=315*8=2520
d=12300-2520=9780
d=9780
V.9780+2520=12300

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