| A | B |
|---|
| When you solve by the addition method, you | add the equations together |
| Your goal is to get | one equation in one unknown |
| 2X + Y = 17 and 2X - Y = 7 What is X? | 6 |
| 2X + Y = 17 and 2X - Y = 7 What is Y? | 5 |
| If you have fractions in equations, you should | multiply all terms by the LCD |
| 3X + 4Y = 12 and -X + 5Y = 13 To clear the Xs | Multiply the 2nd equation by 3 |
| To find the 2nd answer, plug the first answer into | equation 1 |
| To check, plug both answers into | equation 2 |
