方程式系 ワークシート

9x + 8y = 119, x = 7 → y = ____

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

6x + 7y = 69, x = 8 → y = ____

4x + 4y = 44, x = 3 → y = ____

2x + 1y = 7, x = 1 → y = ____

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

x + y = 15, x − y = -3 → x = ____, y = ____

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

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

6x + 6y = 72, x = 3 → y = ____

7x + 1y = 21, x = 2 → y = ____

x + y = 8, x − y = 2 → x = ____, y = ____

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

6x + 7y = 90, x = 8 → y = ____

9x + 6y = 102, x = 6 → y = ____

7x + 9y = 91, x = 4 → y = ____

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

5x + 8y = 53, x = 1 → y = ____

6x + 3y = 9, x = 1 → y = ____

6x + 1y = 17, x = 2 → y = ____