方程式系 ワークシート

x + y = 17, x − y = 1 → x = ____, y = ____

1x + 8y = 57, x = 9 → y = ____

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

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

4x + 9y = 61, x = 4 → y = ____

2x + 3y = 31, x = 8 → y = ____

2x + 4y = 34, x = 3 → y = ____

x + y = 14, x − y = 0 → x = ____, y = ____

x + y = 10, x − y = -6 → x = ____, y = ____

6x + 4y = 28, x = 4 → y = ____

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

4x + 5y = 19, x = 1 → y = ____

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

3x + 7y = 66, x = 8 → y = ____

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

7x + 3y = 25, x = 1 → y = ____

7x + 5y = 38, x = 4 → y = ____

x + y = 6, x − y = 4 → x = ____, y = ____

3x + 8y = 27, x = 1 → y = ____

4x + 9y = 26, x = 2 → y = ____