方程式系 ワークシート

x + y = 5, x − y = 3 → x = ____, y = ____

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

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

x + y = 8, x − y = 4 → x = ____, y = ____

6x + 7y = 27, x = 1 → y = ____

7x + 8y = 127, x = 9 → y = ____

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

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

x + y = 9, x − y = 1 → x = ____, y = ____

2x + 7y = 45, x = 5 → y = ____

7x + 7y = 98, x = 5 → y = ____

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

9x + 1y = 70, x = 7 → y = ____

6x + 6y = 18, x = 1 → y = ____

4x + 3y = 36, x = 3 → y = ____

4x + 2y = 42, x = 8 → y = ____

1x + 4y = 15, x = 3 → y = ____

9x + 2y = 44, x = 4 → y = ____

3x + 3y = 45, x = 6 → y = ____

2x + 8y = 64, x = 4 → y = ____