方程式系 ワークシート

x + y = 13, x − y = -3 → x = ____, y = ____

4x + 8y = 40, x = 8 → y = ____

8x + 7y = 37, x = 2 → y = ____

5x + 7y = 69, x = 4 → y = ____

6x + 7y = 38, x = 4 → y = ____

x + y = 15, x − y = -3 → x = ____, y = ____

4x + 1y = 37, x = 8 → y = ____

4x + 9y = 47, x = 5 → y = ____

x + y = 7, x − y = 1 → x = ____, y = ____

4x + 2y = 46, x = 8 → y = ____

1x + 8y = 76, x = 4 → y = ____

2x + 7y = 60, x = 2 → y = ____

7x + 2y = 35, x = 3 → y = ____

x + y = 5, x − y = 3 → x = ____, y = ____

1x + 1y = 13, x = 4 → y = ____

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

x + y = 5, x − y = -1 → x = ____, y = ____

x + y = 12, x − y = 0 → x = ____, y = ____

9x + 9y = 36, x = 1 → y = ____

2x + 4y = 30, x = 3 → y = ____