方程式系 ワークシート

x + y = 7, x − y = 5 → x = ____, y = ____

x + y = 10, x − y = -4 → x = ____, y = ____

9x + 2y = 35, x = 3 → y = ____

6x + 8y = 52, x = 2 → y = ____

3x + 6y = 75, x = 7 → y = ____

x + y = 12, x − y = -6 → x = ____, y = ____

1x + 6y = 62, x = 8 → y = ____

x + y = 9, x − y = 1 → x = ____, y = ____

9x + 8y = 104, x = 8 → y = ____

6x + 1y = 14, x = 1 → y = ____

x + y = 10, x − y = 4 → x = ____, y = ____

8x + 3y = 43, x = 2 → y = ____

x + y = 11, x − y = -7 → x = ____, y = ____

5x + 8y = 117, x = 9 → y = ____

8x + 2y = 76, x = 8 → y = ____

x + y = 9, x − y = -1 → x = ____, y = ____

x + y = 13, x − y = -5 → x = ____, y = ____

9x + 4y = 87, x = 7 → y = ____

4x + 5y = 13, x = 2 → y = ____

9x + 7y = 119, x = 7 → y = ____