方程式系 ワークシート

x + y = 5, x − y = 1 → x = ____, y = ____

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

1x + 7y = 57, x = 1 → y = ____

9x + 8y = 118, x = 6 → y = ____

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

2x + 7y = 70, x = 7 → y = ____

x + y = 7, x − y = 1 → x = ____, y = ____

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

2x + 2y = 8, x = 3 → y = ____

7x + 7y = 112, x = 9 → y = ____

x + y = 13, x − y = 5 → x = ____, y = ____

6x + 8y = 120, x = 8 → y = ____

x + y = 10, x − y = -6 → x = ____, y = ____

6x + 4y = 32, x = 2 → y = ____

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

2x + 4y = 38, x = 5 → y = ____

9x + 9y = 81, x = 1 → y = ____

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

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

3x + 9y = 90, x = 3 → y = ____