Final answer:
To solve a system of three equations using a calculator, you must input the equations' known coefficients and constants use the calculator's solving function and verify the solutions by plugging them back into the original equations.
Step-by-step explanation:
To solve a system of three equations using a calculator, such as the TI-83, 83+, or 84, follow these steps:
- Identify the unknowns in your set of equations. These are the variables you are solving for.
- Identify the knowns, which are the coefficients and constants in the equations.
- Enter your data into the calculator. You may need to access the matrix or equation-solving function on your device to input the coefficients of the variables and the constants from the other side of the equations.
- Once your data is entered, use the calculator's function to solve the simultaneous equations. Follow any on-screen instructions to find the values of the unknowns.
- Verify your solutions by plugging them back into the original equations to ensure they satisfy all three equations.
Some calculators, like the TI models, provide a step-by-step process or a single calculation mode that can automatically find the solution set. Remember to carefully check each step of your inputs and outputs to avoid any errors.