Question

369 = 201 + ( n - 1 ) × 7​

Answer 1

$369 = 201 + (n - 1) * 7 \\=> 369 = 201 + 7n - 7\\=>369 = 201 - 7 +7n\\=>369 = 194 + 7n\\=>369-194 = 7n\\=>175 = 7n\\=> n = \frac{175}{7}\\=>n = 25 \:\:\: (answer)$

Answer 2

Answer:

369-201=(n-1)×7

168. =(n-1)×7

168÷7 = (n-1)

24. = (n-1)

24+1 =n

25. =n