3 years ago

You need to find three numbers that come in quick succession in the order of numbers (ex. 1, 2 and 3) and which

Mathematics

1 answer:

eimsori [14]3 years ago

4 0

Answer:

set middle number=x

then left side number=x-1

and right side number=x+1

(x-1)+x+(x+1)＝30

3x=30

x=10

x-1=9

x+1=11

numbers are 9,10,11

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