方程式系 ワークシート

1x + 2y = 26, x = 8 → y = ____

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

x + y = 11, x − y = 7 → x = ____, y = ____

4x + 6y = 50, x = 8 → y = ____

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

4x + 9y = 44, x = 2 → y = ____

6x + 2y = 36, x = 3 → y = ____

6x + 5y = 68, x = 8 → y = ____

x + y = 11, x − y = -3 → x = ____, y = ____

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

3x + 8y = 49, x = 3 → y = ____

6x + 3y = 18, x = 2 → y = ____

7x + 3y = 66, x = 9 → y = ____

x + y = 9, x − y = -5 → x = ____, y = ____

3x + 5y = 28, x = 6 → y = ____

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

6x + 4y = 38, x = 3 → y = ____

8x + 9y = 50, x = 4 → y = ____

2x + 1y = 21, x = 9 → y = ____

x + y = 4, x − y = 0 → x = ____, y = ____