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A+B+C=223; 896:A=7; B:C=9 rest 5;
A=?,B=?C=?



Răspuns :

a+b+c=223
896/a=7 a=896/7=128
b;c=9 rest 5 =>b=9c+5
128+9c+5+c=223
133+10c=223
10c=90 
c=9
b=9*c+5=9*9+5=86
a=896 :7
a=128
b+c=223-128
b+c=95
9c+5+c=95   |-5
10 c=90
c=9
b=9 * 9+5
b=81+5
b=86