方程式系 ワークシート

2x + 1y = 10, x = 3 → y = ____

6x + 8y = 112, x = 8 → y = ____

x + y = 15, x − y = -3 → x = ____, y = ____

4x + 5y = 33, x = 7 → y = ____

x + y = 10, x − y = -6 → x = ____, y = ____

7x + 8y = 97, x = 7 → y = ____

8x + 3y = 91, x = 8 → y = ____

8x + 4y = 52, x = 5 → y = ____

4x + 5y = 22, x = 3 → y = ____

4x + 3y = 36, x = 3 → y = ____

x + y = 15, x − y = 3 → x = ____, y = ____

3x + 2y = 25, x = 5 → y = ____

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

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

3x + 5y = 51, x = 2 → y = ____

1x + 6y = 54, x = 6 → y = ____

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

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

4x + 9y = 29, x = 5 → y = ____

8x + 4y = 56, x = 4 → y = ____