Question 992321
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1. &nbsp;<U>First way to solve it</U>:


Let &nbsp;x&nbsp; be the first of the three numbers.
Then the second and the third are &nbsp;(x+1) &nbsp;and &nbsp;(x+2), &nbsp;respectively.


Your equation is 


x + (x+1) + (x+2) = 963.


3x + 3 = 963,


3x = 963 - 3 = 960,


x = {{{960/3}}} = 320.


Thus the first number is &nbsp;320, &nbsp;the second is &nbsp;321, &nbsp;and the third is &nbsp;322.


Please check yourself that the tree numbers satisfy the condition.



2. &nbsp;<U>Second way to solve it</U>:


Let &nbsp;x&nbsp; be the second number.
Then the first and the third numbers are &nbsp;(x-1) &nbsp;and &nbsp;(x+1),  &nbsp;respectively.


And your equation is


(x-1) + x + (x+1) = 963,


3x = 963,


x = {{{963/3}}} = 321,


and so on . . . 


Good luck!