Question

The sum of three consecutive multiples of 7 is 777. Find the multiples.​

Answer 1

Step-by-step explanation:

let first multiples be x

second multiples = x +7

third multiples = x + 14

x + x +7 + x +14 = 777

3x = 777 -21

3x = 756

x = 252

first multiples = 252

second multiples = 252 + 7 = 259

third multiples = 252 + 14 = 266

Answer 2

Step-by-step explanation:

x, x+7, x+14

x + x + 7 + x + 14 = 777

3x + 21 = 777

3x = 777 - 21

3x = 756

x = 756/3

x = 252

Therefore,

x = 252

x+7 = 258

x + 14 = 266

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