Problem
Write an equation and (b) solve. 1. A walk-in clinic received 7 more patients on Monday than on Tuesday. If the total number of patients seen on both days was 43 , how many patients were seen on Monday?
Solution
Step 1 ：Let x represent the number of patients seen on Tuesday. Then x + 7 represents the number of patients seen on Monday.
Step 2 ：Write the equation: x + (x + 7) = 43
Step 3 ：Solve for x: 2x + 7 = 43
