Răspuns:
1. a+b+c=405
a+2=b
a+4=c
a×3+6=405
3a=405-6
3a=399
a=133
b=133+2
b=135
c=135+3
c=138
2. a+d+m=126
d-14=a
a+16=m
3×a+30=126
3a=126-30
3a=96
a=32
d=32+14
d=46
m=32+16
m=48
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Răspuns:
1. a+b+c=405
a+2=b
a+4=c
a×3+6=405
3a=405-6
3a=399
a=133
b=133+2
b=135
c=135+3
c=138
2. a+d+m=126
d-14=a
a+16=m
3×a+30=126
3a=126-30
3a=96
a=32
d=32+14
d=46
m=32+16
m=48