方程式系 ワークシート

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

8x + 8y = 136, x = 8 → y = ____

7x + 6y = 65, x = 5 → y = ____

3x + 8y = 42, x = 6 → y = ____

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

2x + 8y = 36, x = 6 → y = ____

7x + 4y = 43, x = 1 → y = ____

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

2x + 7y = 23, x = 1 → y = ____

8x + 7y = 97, x = 6 → y = ____

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

7x + 5y = 52, x = 6 → y = ____

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

4x + 2y = 50, x = 9 → y = ____

1x + 4y = 35, x = 7 → y = ____

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

3x + 7y = 70, x = 7 → y = ____

9x + 7y = 108, x = 5 → y = ____

8x + 8y = 120, x = 6 → y = ____

5x + 3y = 51, x = 6 → y = ____