方程式系 ワークシート

1x + 4y = 27, x = 3 → y = ____

4x + 5y = 23, x = 2 → y = ____

x + y = 10, x − y = 2 → x = ____, y = ____

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

5x + 2y = 23, x = 3 → y = ____

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

3x + 6y = 66, x = 4 → y = ____

3x + 8y = 50, x = 6 → y = ____

x + y = 6, x − y = 0 → x = ____, y = ____

9x + 4y = 82, x = 6 → y = ____

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

1x + 1y = 3, x = 1 → y = ____

x + y = 16, x − y = 0 → x = ____, y = ____

2x + 6y = 42, x = 6 → y = ____

7x + 2y = 79, x = 9 → y = ____

2x + 2y = 36, x = 9 → y = ____

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

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

2x + 7y = 46, x = 2 → y = ____

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