方程式系 ワークシート

8x + 4y = 60, x = 5 → y = ____

7x + 2y = 37, x = 3 → y = ____

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

4x + 2y = 24, x = 4 → y = ____

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

4x + 6y = 76, x = 7 → y = ____

9x + 8y = 76, x = 4 → y = ____

7x + 8y = 83, x = 5 → y = ____

x + y = 8, x − y = -6 → x = ____, y = ____

9x + 4y = 117, x = 9 → y = ____

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

3x + 5y = 28, x = 6 → y = ____

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

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

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

8x + 6y = 44, x = 1 → y = ____

6x + 7y = 79, x = 5 → y = ____

9x + 8y = 135, x = 7 → y = ____

8x + 7y = 66, x = 3 → y = ____

3x + 2y = 23, x = 3 → y = ____