方程式系 ワークシート

9x + 3y = 30, x = 1 → y = ____

7x + 7y = 84, x = 9 → y = ____

9x + 2y = 41, x = 3 → y = ____

x + y = 13, x − y = -1 → x = ____, y = ____

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

3x + 1y = 31, x = 8 → y = ____

9x + 8y = 91, x = 3 → y = ____

2x + 4y = 10, x = 1 → y = ____

6x + 9y = 102, x = 8 → y = ____

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

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

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

x + y = 16, x − y = 0 → x = ____, y = ____

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

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

4x + 7y = 55, x = 5 → y = ____

5x + 1y = 17, x = 3 → y = ____

x + y = 11, x − y = 7 → x = ____, y = ____

8x + 4y = 64, x = 6 → y = ____

4x + 3y = 40, x = 4 → y = ____