方程式系 ワークシート

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

7x + 2y = 68, x = 8 → y = ____

9x + 7y = 55, x = 3 → y = ____

x + y = 15, x − y = -1 → x = ____, y = ____

7x + 1y = 23, x = 3 → y = ____

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

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

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

2x + 6y = 62, x = 7 → y = ____

5x + 8y = 70, x = 6 → y = ____

x + y = 12, x − y = 4 → x = ____, y = ____

x + y = 8, x − y = 2 → x = ____, y = ____

6x + 6y = 90, x = 9 → y = ____

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

3x + 4y = 39, x = 5 → y = ____

4x + 3y = 25, x = 1 → y = ____

4x + 4y = 52, x = 8 → y = ____

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

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

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