Query about Question 17 from "PrepSwift Quant Tickbox Quiz #5 (Algebra Column 2)" [6494]

https://www.gregmat.com/quizzes/quiz/prepswift-quant-tickbox-quiz-5-algebra-column-2 (Question 17)


Do we have to first subtract 5 on both sides to make the equation equal to 0 and then find the value to be added on both sides?