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URGENT! DAU COROANA!!
Ex 18


URGENT DAU COROANA Ex 18 class=

Răspuns :

a+a+2+a+4+a+6=740
4a+12=740
4a=740-12
4a=728
a=182
b=184
c=186
d=188

Problema '

Suma a 3 numere impare consecutive este 27 . Alfa nr.
a+a+2+a+4=27
3a+6=27
3a=27-6
3a=21
a=7
b=9
c=11
suma= 740
x+(x+2)+(x+4)+(x+6)=740
4x+12=740
4x=740 minus 12=728
x=728:4=182
x=182