方程式系 ワークシート

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

6x + 7y = 45, x = 4 → y = ____

7x + 2y = 31, x = 3 → y = ____

9x + 9y = 36, x = 1 → y = ____

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

8x + 7y = 53, x = 4 → y = ____

x + y = 15, x − y = -1 → x = ____, y = ____

8x + 8y = 40, x = 2 → y = ____

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

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

7x + 7y = 77, x = 7 → y = ____

8x + 9y = 71, x = 1 → y = ____

4x + 4y = 24, x = 1 → y = ____

x + y = 10, x − y = -4 → x = ____, y = ____

5x + 7y = 31, x = 2 → y = ____

6x + 3y = 51, x = 7 → y = ____

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

2x + 2y = 26, x = 9 → y = ____

9x + 9y = 90, x = 8 → y = ____

2x + 2y = 22, x = 3 → y = ____