Final answer:
To find out the number of children that attended Vacation Bible School at Highland Church last year, we solve the equation 2x - 23 = 107, leading us to x = 65 children.
Step-by-step explanation:
The question asks to find out how many children attended Vacation Bible School at Highland Church last year, given this year's attendance and the relationship between this year's and last year's attendance. To solve this problem, we set up the equation 2x - 23 = 107, where x represents the number of children that attended last year. The solution to this equation will give us the attendance for the previous year.
Step-by-step, we add 23 to both sides of the equation, getting 2x = 130. Then, we divide both sides by 2 to solve for x, which gives us x = 65. Thus, 65 children attended Vacation Bible School at Highland Church last year.