方程式系 ワークシート

4x + 6y = 80, x = 8 → y = ____

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

8x + 7y = 127, x = 8 → y = ____

x + y = 16, x − y = -2 → x = ____, y = ____

6x + 5y = 43, x = 3 → y = ____

8x + 9y = 41, x = 4 → y = ____

x + y = 10, x − y = 2 → x = ____, y = ____

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

3x + 4y = 53, x = 7 → y = ____

2x + 8y = 66, x = 1 → y = ____

x + y = 11, x − y = -5 → x = ____, y = ____

x + y = 8, x − y = 0 → x = ____, y = ____

1x + 2y = 19, x = 1 → y = ____

x + y = 6, x − y = 0 → x = ____, y = ____

x + y = 9, x − y = -1 → x = ____, y = ____

2x + 3y = 32, x = 4 → y = ____

x + y = 12, x − y = -6 → x = ____, y = ____

8x + 1y = 29, x = 3 → y = ____

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

x + y = 12, x − y = 4 → x = ____, y = ____