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emmainna [20.7K]
3 years ago
7

Is the answer 40? I am kind of confused

Mathematics
2 answers:
klemol [59]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

29-18=11

c=11

18+2(11)=40

Y_Kistochka [10]3 years ago
3 0

Answer:

30

Step-by-step explanation:

If A+B is 18, A and B should equal 9.

A+B+C=29, that should mean C=6.

A+B+2C=9+9+2(6)

9+9+2(6)=30

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