The sum of the three adjacent natural numbers is 30. What are the three natural numbers (solved by equation)

The sum of the three adjacent natural numbers is 30. What are the three natural numbers (solved by equation)

Let a natural number in the middle be x, then
X-1+X+X+1＝30
3X＝30
X＝10
X-1＝9,
X+1＝11
A: the three natural numbers are 9, 10 and 11

Please use the equation to solve a solution. The sum of three adjacent natural numbers is 255. What are the three natural numbers?

Let a natural number in the middle be x, then
X-1+X+X+1＝255
3X＝255
X＝85
X-1＝85-1=84
X+1＝85+1=86
A: the three natural numbers are 84, 85 and 86

The sum of two adjacent natural numbers is 163. What are the two natural numbers? (solve by equation)

Let one of the numbers be X. then the other is x + 1
X + X + 1 = 163
2x+1=163
x=81;
The two natural numbers are 81 and 82, respectively

The sum of three continuous natural numbers is 81. What are the three continuous natural numbers? (using equation solution)

Let the minimum natural number be x, then the next two natural numbers are x + 1 and X + 2
X +X+1 +X+2 =81
3X + 3 =81
3X = 78
X = 26
X+1 =27
X+2 = 28