方程式系 ワークシート

6x + 2y = 50, x = 7 → y = ____

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

1x + 2y = 9, x = 1 → y = ____

7x + 5y = 82, x = 6 → y = ____

2x + 5y = 26, x = 8 → y = ____

x + y = 13, x − y = -3 → x = ____, y = ____

2x + 7y = 28, x = 7 → y = ____

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

4x + 3y = 22, x = 4 → y = ____

2x + 2y = 8, x = 2 → y = ____

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

3x + 5y = 26, x = 2 → y = ____

4x + 3y = 45, x = 6 → y = ____

6x + 8y = 44, x = 6 → y = ____

4x + 3y = 30, x = 3 → y = ____

9x + 1y = 18, x = 1 → y = ____

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

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

x + y = 7, x − y = 5 → x = ____, y = ____

7x + 9y = 73, x = 4 → y = ____