方程式系 ワークシート

3x + 9y = 45, x = 6 → y = ____

x + y = 9, x − y = 7 → x = ____, y = ____

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

6x + 9y = 63, x = 3 → y = ____

6x + 5y = 27, x = 2 → y = ____

7x + 7y = 126, x = 9 → y = ____

4x + 2y = 36, x = 7 → y = ____

x + y = 12, x − y = -6 → x = ____, y = ____

5x + 9y = 117, x = 9 → y = ____

9x + 6y = 39, x = 1 → y = ____

5x + 2y = 41, x = 7 → y = ____

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

x + y = 8, x − y = -4 → x = ____, y = ____

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

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

x + y = 9, x − y = -3 → x = ____, y = ____

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

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

6x + 1y = 15, x = 1 → y = ____

1x + 4y = 30, x = 2 → y = ____