方程式系 ワークシート

1x + 8y = 68, x = 4 → y = ____

8x + 2y = 42, x = 4 → y = ____

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

4x + 7y = 60, x = 8 → y = ____

7x + 7y = 56, x = 2 → y = ____

1x + 9y = 39, x = 3 → y = ____

9x + 8y = 119, x = 7 → y = ____

x + y = 7, x − y = 1 → x = ____, y = ____

8x + 8y = 80, x = 3 → y = ____

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

4x + 9y = 38, x = 5 → y = ____

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

7x + 7y = 119, x = 8 → y = ____

8x + 7y = 111, x = 6 → y = ____

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

4x + 1y = 23, x = 4 → y = ____

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

4x + 8y = 64, x = 6 → y = ____

4x + 6y = 68, x = 5 → y = ____

x + y = 7, x − y = -3 → x = ____, y = ____