Jawaban:
- 3
Penjelasan dengan langkah-langkah:
(a+1)+(b+2)+(c+3)=3(a+b+c+4)
(a+b+c)+6=3(a+b+c)+12
-2(a+b+c)=6
a+b+c=-3
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Jawaban:
- 3
Penjelasan dengan langkah-langkah:
(a+1)+(b+2)+(c+3)=3(a+b+c+4)
(a+b+c)+6=3(a+b+c)+12
-2(a+b+c)=6
a+b+c=-3