方程式系 ワークシート

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

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

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

4x + 7y = 25, x = 1 → y = ____

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

4x + 7y = 70, x = 7 → y = ____

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

1x + 1y = 5, x = 3 → y = ____

3x + 8y = 11, x = 1 → y = ____

8x + 1y = 64, x = 7 → y = ____

4x + 6y = 74, x = 8 → y = ____

7x + 7y = 56, x = 5 → y = ____

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

2x + 3y = 35, x = 7 → y = ____

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

x + y = 6, x − y = -2 → x = ____, y = ____

4x + 2y = 42, x = 7 → y = ____

3x + 6y = 15, x = 3 → y = ____

6x + 7y = 52, x = 4 → y = ____

1x + 5y = 44, x = 9 → y = ____