方程式系 ワークシート

3x + 9y = 27, x = 6 → y = ____

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

6x + 5y = 99, x = 9 → y = ____

9x + 3y = 54, x = 5 → y = ____

6x + 1y = 12, x = 1 → y = ____

2x + 9y = 65, x = 1 → y = ____

x + y = 16, x − y = 2 → x = ____, y = ____

7x + 8y = 66, x = 6 → y = ____

3x + 3y = 39, x = 8 → y = ____

x + y = 11, x − y = -5 → x = ____, y = ____

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

3x + 8y = 56, x = 8 → y = ____

8x + 9y = 70, x = 2 → y = ____

9x + 7y = 94, x = 5 → y = ____

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

3x + 9y = 30, x = 1 → y = ____

2x + 8y = 58, x = 5 → y = ____

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

6x + 3y = 18, x = 2 → y = ____

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