9 + 10 = 21 PLSSSSSSSSSSSSS

Mathematics

2 answers:

Natalija [7]3 years ago

7 0

mhmm I totally just brainfarted

stellarik [79]3 years ago

6 0

Answer:

9 + 10 +x= 21

x=21-19

x=2

add 2 in left hand side to get 21

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