方程式系 ワークシート

x + y = 11, x − y = -1 → x = ____, y = ____

x + y = 14, x − y = 2 → x = ____, y = ____

3x + 9y = 54, x = 9 → y = ____

9x + 2y = 86, x = 8 → y = ____

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

7x + 1y = 62, x = 8 → y = ____

x + y = 8, x − y = 6 → x = ____, y = ____

4x + 9y = 64, x = 7 → y = ____

1x + 7y = 64, x = 1 → y = ____

x + y = 18, x − y = 0 → x = ____, y = ____

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

9x + 1y = 23, x = 2 → y = ____

3x + 9y = 93, x = 7 → y = ____

x + y = 10, x − y = -8 → x = ____, y = ____

9x + 2y = 49, x = 5 → y = ____

1x + 7y = 29, x = 8 → y = ____

x + y = 10, x − y = 8 → x = ____, y = ____

1x + 9y = 75, x = 3 → y = ____

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

8x + 6y = 40, x = 2 → y = ____