方程式系 ワークシート

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

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

3x + 1y = 15, x = 2 → y = ____

2x + 6y = 68, x = 7 → y = ____

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

1x + 9y = 59, x = 5 → y = ____

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

8x + 7y = 79, x = 9 → y = ____

x + y = 14, x − y = 4 → x = ____, y = ____

5x + 9y = 58, x = 8 → y = ____

x + y = 11, x − y = 7 → x = ____, y = ____

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

3x + 3y = 42, x = 6 → y = ____

5x + 8y = 53, x = 9 → y = ____

7x + 5y = 39, x = 2 → y = ____

x + y = 7, x − y = -1 → x = ____, y = ____

7x + 6y = 61, x = 7 → y = ____

1x + 8y = 47, x = 7 → y = ____

6x + 8y = 64, x = 8 → y = ____

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