Answer:
y=361
Step-by-step explanation:
187^2-174^2 = 4693
4693/13 = 361
13 x 361 = 4693
Answer: y = 361
Step-by-step explanation:
1. 13y = 187^2 - 174^2
2. 13y = (187 - 174) x (187 + 174) --- (use a^2 - b^2 = (a-b)(a+b)
3. 13y = 13(187 + 174) ---- (subtract the number)
4. 13y = 13 x 361 --- (add the numbers)
5. 13y = 4693 --- (multiply)
6. y = 361 ---- (divide)
