方程式系 ワークシート

4x + 5y = 63, x = 7 → y = ____

2x + 5y = 27, x = 6 → y = ____

5x + 2y = 33, x = 3 → y = ____

x + y = 6, x − y = -2 → x = ____, y = ____

5x + 4y = 39, x = 3 → y = ____

2x + 4y = 38, x = 5 → y = ____

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

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

x + y = 17, x − y = 1 → x = ____, y = ____

x + y = 8, x − y = 4 → x = ____, y = ____

8x + 3y = 68, x = 7 → y = ____

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

3x + 6y = 33, x = 9 → y = ____

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

8x + 7y = 54, x = 5 → y = ____

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

2x + 9y = 97, x = 8 → y = ____

5x + 2y = 38, x = 6 → y = ____

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

x + y = 9, x − y = 3 → x = ____, y = ____