方程式系 ワークシート

x + y = 14, x − y = 0 → x = ____, y = ____

1x + 1y = 8, x = 7 → y = ____

7x + 8y = 15, x = 1 → y = ____

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

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

7x + 1y = 29, x = 4 → y = ____

x + y = 13, x − y = -3 → x = ____, y = ____

x + y = 9, x − y = 1 → x = ____, y = ____

x + y = 15, x − y = 3 → x = ____, y = ____

2x + 5y = 27, x = 6 → y = ____

7x + 3y = 32, x = 2 → y = ____

2x + 4y = 48, x = 6 → y = ____

6x + 3y = 27, x = 4 → y = ____

8x + 4y = 84, x = 9 → y = ____

8x + 3y = 78, x = 9 → y = ____

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

5x + 1y = 16, x = 2 → y = ____

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

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

9x + 4y = 71, x = 7 → y = ____