Question

three consecutive integers add up to 51 what are these integers ?

Answer 1

let x x+1 and x+2
add them
3x + 3 = 51
3x = 48
x = 48/3
x= 16
x+1=17
x+2=18

Answer 2

Let, z be an integer.
So, the other integers are (z+1) , (z+2).

Therefore, According to question,

$z + (z + 1) + (z + 2) = 51 \\ = > 3z \: + 3 = 51 \\ = > 3(z + 1) = 51 \\ = > z + 1 = \frac{51}{3} \\ = > z + 1 = 17 \\ = > z = 17 - 1 = 16$
So, the integers are 16, 17 and 18.

Hope it helps...
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