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Jlenok [28]
3 years ago
11

(6x+12) + 78 + (3x-12)

Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0

Answer:

9x+78

Step-by-step explanation:

(6x+12) + 78 + (3x-12)= \\\\6x+3x+12-12+78=\\\\9x+78

Hope this helps!

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