a = first number
b = second number = a + 1
c = third number = b + 1 = a + 1 + 1 = a + 2
a + b + c = 315
a + a + 1 + a + a + 2 = 315
3 a + 3 = 315
Subtract 3 to both sides
3 a = 312
Divide both sides by 3
a = 104
b = a + 1 = 105 + 1 = 105
c = a + 2 = 104 + 2 = 106
104 + 105 + 106 = 315
if the sum of three consecutive positive number is 315. What is the numbers?
2 answers
x+(x+1)+(x+2) = 315
3x + 3 = 315
X = 104
x+1 = 105
x+2 = 106.
3x + 3 = 315
X = 104
x+1 = 105
x+2 = 106.