Denisanca2004ask
a fost răspuns

b: a= 4 rest 2

a+b=67

c= 2*a

d=(b+c): 2

d-c=?

Răspuns :

Miky93ask
b=4a+2

a+b=67
a+4a+2=67
5a=67-2
5a=65
a=13

b=4*13+2= 52 +2=54

c=2a= 2*13=26

d=(b+c):2= (54+26) :2= 80:2=40

d-c=40-26=14

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