Răspuns:
a+b+c = 43
b=a+3
c=b+7
a |___|
+3
b |___|__|
+3 +7
c |___|__|__|
43-(3+3+7)=30 fara surplus
30:3=10 a
10+3=13 b
13+7=20 c
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Răspuns:
a+b+c = 43
b=a+3
c=b+7
a |___|
+3
b |___|__|
+3 +7
c |___|__|__|
43-(3+3+7)=30 fara surplus
30:3=10 a
10+3=13 b
13+7=20 c
y= 3•x
z=7•y
z= 7•3•x
z=21x
x+y+z= 43
x+3x+21x= 43
25x= 43
x= 43/25