方程式系 ワークシート

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

4x + 4y = 68, x = 8 → y = ____

8x + 2y = 66, x = 6 → y = ____

4x + 9y = 104, x = 8 → y = ____

1x + 5y = 14, x = 9 → y = ____

2x + 7y = 77, x = 7 → y = ____

x + y = 14, x − y = 4 → x = ____, y = ____

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

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

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

4x + 6y = 58, x = 7 → y = ____

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

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

1x + 3y = 19, x = 7 → y = ____

3x + 7y = 72, x = 3 → y = ____

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

5x + 9y = 67, x = 8 → y = ____

7x + 8y = 54, x = 2 → y = ____

4x + 2y = 22, x = 4 → y = ____

x + y = 14, x − y = 2 → x = ____, y = ____