Equation Solving Using a Table Guidance for Casio fx-9750GIII

Solve for $x$ : $5 x + 1 = 21$

Step 1

From the Main Menu, Press 5 to enter the GRAPH Mode; the “Function Editor” will appear first.

Enter the left side of the equation into Y1. $Y 1 = 5 x + 1$

Enter the right side of the equation into Y2. $Y 2 = 21$

Press MENU, 7 for table, then EXE. A table will automatically generate.

A table will appear, and the answer will have both Y1 and Y2 with the same number. For this problem, you will see

$x = 4$ , $Y 1 = 21$ , $Y 2 = 21$ .