方程式系 ワークシート

x + y = 5, x − y = 3 → x = ____, y = ____

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

4x + 7y = 59, x = 6 → y = ____

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

8x + 1y = 49, x = 5 → y = ____

3x + 3y = 15, x = 1 → y = ____

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

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

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

4x + 5y = 72, x = 8 → y = ____

7x + 9y = 123, x = 6 → y = ____

5x + 2y = 42, x = 8 → y = ____

1x + 4y = 22, x = 2 → y = ____

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

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

8x + 8y = 64, x = 3 → y = ____

1x + 1y = 10, x = 3 → y = ____

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

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

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