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QveST [7]
3 years ago
13

Wendy asked when you add 9 and 10 is the sum 21?

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

I think the answer is 9+10 =21 or the answer is 40

Idk

Step-by-step explanation:

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Step-by-step explanation:

soulution:

        given,              2x +2x = 16 <em>-</em> <em>2x</em> + 3y = 14

                                 2x <em>+ 2x</em> = <em>-2y </em>+3y = 14 -16

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Step-by-step explanation:

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