方程式系 ワークシート

x + y = 11, x − y = -3 → x = ____, y = ____

7x + 5y = 22, x = 1 → y = ____

9x + 1y = 28, x = 3 → y = ____

9x + 8y = 129, x = 9 → y = ____

x + y = 15, x − y = -1 → x = ____, y = ____

x + y = 13, x − y = -1 → x = ____, y = ____

1x + 1y = 10, x = 5 → y = ____

3x + 4y = 52, x = 8 → y = ____

x + y = 8, x − y = 2 → x = ____, y = ____

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

1x + 3y = 27, x = 6 → y = ____

x + y = 12, x − y = -4 → x = ____, y = ____

5x + 8y = 66, x = 2 → y = ____

9x + 5y = 56, x = 4 → y = ____

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

1x + 6y = 31, x = 7 → y = ____

6x + 2y = 40, x = 5 → y = ____

2x + 8y = 84, x = 6 → y = ____

6x + 9y = 81, x = 3 → y = ____

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