方程式系 ワークシート

7x + 7y = 70, x = 3 → y = ____

1x + 5y = 26, x = 6 → y = ____

3x + 9y = 66, x = 4 → y = ____

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

7x + 2y = 58, x = 6 → y = ____

5x + 4y = 46, x = 6 → y = ____

6x + 9y = 120, x = 8 → y = ____

4x + 2y = 36, x = 7 → y = ____

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

x + y = 7, x − y = -3 → x = ____, y = ____

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

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

1x + 7y = 43, x = 1 → y = ____

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

5x + 8y = 76, x = 4 → y = ____

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

2x + 5y = 24, x = 7 → y = ____

x + y = 9, x − y = 5 → x = ____, y = ____

x + y = 14, x − y = 4 → x = ____, y = ____

1x + 5y = 10, x = 5 → y = ____