方程式系 ワークシート

5x + 4y = 18, x = 2 → y = ____

2x + 6y = 42, x = 6 → y = ____

9x + 2y = 52, x = 4 → y = ____

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

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

x + y = 12, x − y = -2 → x = ____, y = ____

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

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

9x + 6y = 48, x = 4 → y = ____

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

4x + 4y = 44, x = 6 → y = ____

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

6x + 3y = 42, x = 6 → y = ____

x + y = 4, x − y = 0 → x = ____, y = ____

5x + 8y = 69, x = 1 → y = ____

5x + 8y = 66, x = 2 → y = ____

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

x + y = 9, x − y = 5 → x = ____, y = ____

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

5x + 5y = 35, x = 4 → y = ____