Hello, thank you for taking the time to post your question!
The key on this type of question is to set up an algebraic expression that represents the information given in the question. On this one we have
7x + 61 = 10(x + 4) because it’s saying that 7 times the number + 61 equals the product of 10 and the sum of the number and 4.
From there then you want to solve for the value of x algebraically!
7x + 61 = 10x + 40
21 = 3x
x = 21/3 = 7
I hope that helps you get moving in a better direction on this type of question! Feel free to reach out if you have any additional questions beyond that :)