方程式系 ワークシート

7x + 5y = 48, x = 4 → y = ____

3x + 9y = 84, x = 4 → y = ____

x + y = 10, x − y = -8 → x = ____, y = ____

7x + 9y = 61, x = 1 → y = ____

7x + 5y = 62, x = 6 → y = ____

5x + 6y = 58, x = 8 → y = ____

9x + 7y = 137, x = 9 → y = ____

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

9x + 8y = 25, x = 1 → y = ____

7x + 4y = 48, x = 4 → y = ____

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

7x + 1y = 51, x = 7 → y = ____

3x + 4y = 7, x = 1 → y = ____

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

6x + 1y = 38, x = 6 → y = ____

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

5x + 1y = 26, x = 4 → y = ____

3x + 5y = 42, x = 4 → y = ____

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

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