方程式系 ワークシート

6x + 2y = 28, x = 2 → y = ____

8x + 5y = 52, x = 4 → y = ____

2x + 8y = 84, x = 6 → y = ____

4x + 9y = 41, x = 8 → y = ____

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

x + y = 3, x − y = 1 → x = ____, y = ____

9x + 9y = 63, x = 3 → y = ____

x + y = 10, x − y = 4 → x = ____, y = ____

x + y = 4, x − y = -2 → x = ____, y = ____

x + y = 13, x − y = -3 → x = ____, y = ____

1x + 9y = 66, x = 3 → y = ____

x + y = 4, x − y = 2 → x = ____, y = ____

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

7x + 7y = 42, x = 3 → y = ____

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

7x + 9y = 86, x = 2 → y = ____

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

2x + 2y = 16, x = 7 → y = ____

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

6x + 5y = 82, x = 7 → y = ____