方程式系 ワークシート

8x + 7y = 111, x = 6 → y = ____

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

8x + 1y = 20, x = 2 → y = ____

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

6x + 3y = 15, x = 1 → y = ____

3x + 8y = 33, x = 3 → y = ____

7x + 5y = 98, x = 9 → y = ____

7x + 5y = 43, x = 4 → y = ____

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

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

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

5x + 7y = 34, x = 4 → y = ____

7x + 8y = 66, x = 6 → y = ____

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

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

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

5x + 6y = 35, x = 1 → y = ____

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

3x + 4y = 32, x = 8 → y = ____

5x + 8y = 44, x = 4 → y = ____