方程式系 ワークシート

9x + 9y = 99, x = 2 → y = ____

4x + 7y = 64, x = 2 → y = ____

6x + 8y = 14, x = 1 → y = ____

2x + 9y = 25, x = 8 → y = ____

x + y = 11, x − y = 1 → x = ____, y = ____

8x + 4y = 48, x = 2 → y = ____

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

1x + 5y = 10, x = 5 → y = ____

4x + 5y = 29, x = 1 → y = ____

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

4x + 7y = 64, x = 9 → y = ____

8x + 2y = 26, x = 2 → y = ____

5x + 1y = 46, x = 8 → y = ____

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

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

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

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

7x + 3y = 53, x = 5 → y = ____

2x + 9y = 58, x = 2 → y = ____

8x + 7y = 90, x = 6 → y = ____