Question

The sum of three consecutive multiples of 7 is 777. Find these multiples.
(Hint: Three consecutive multiples of 7 are “x”; “x+7', ‘x.+14')​

Answer 1

Answer:

Step-by-step explanation:

They are 36,37,38

7x+7(x+1)+7(x+2)=777

Solve this equation and get answer

Answer 2

x+(x+7)+(x+14)  = 777

x+x+7+x+14 = 777

3x + 21 = 777

3x = 777 - 21

3x = 756

x = $\frac{756}{3}$

x = 252

x + 7 = 252 + 7 = 259

x+14 = 252 + 14 = 266