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daca adun sapte nr consecutive pare obtin 70.care sunt numerele?dau coroana plz

Răspuns :

DelMar1901
x+x+1+x+2+x+3+x+4+x+5+x+6=70
7x+21=70/-21
7x=49
x=49:7
x=7
DeeaCoco
a+b+c+d+e+f+g=70 (nr pare)
------------------------------
a,b,c,d,e,f,g=?
a /---/
b /---/-2/
c /---/-2/-2/
d /---/-2/-2/-2/
e /---/-2/-2/-2/-2/
f /---/-2/-2/-2/-2/-2/
g /---/-2/-2/-2/-2/-2/-2/
7 x a=70-42
7 x a=28
a=28:7
a=4
b=4+2
b=6
c=6+2
c=8
d=8+2
d=10
e=10+2
e=12
f=12+2
f=14
g=14+2
g=16

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