方程式系 ワークシート

4x + 7y = 43, x = 9 → y = ____

8x + 5y = 97, x = 9 → y = ____

9x + 7y = 119, x = 7 → y = ____

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

5x + 1y = 33, x = 6 → y = ____

3x + 3y = 27, x = 3 → y = ____

6x + 6y = 36, x = 5 → y = ____

5x + 4y = 77, x = 9 → y = ____

2x + 2y = 18, x = 5 → y = ____

1x + 4y = 15, x = 7 → y = ____

6x + 1y = 56, x = 9 → y = ____

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

x + y = 13, x − y = -5 → x = ____, y = ____

1x + 8y = 51, x = 3 → y = ____

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

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

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

2x + 5y = 24, x = 7 → y = ____

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

x + y = 6, x − y = -4 → x = ____, y = ____