方程式系 ワークシート

1x + 1y = 15, x = 7 → y = ____

7x + 2y = 32, x = 4 → y = ____

x + y = 5, x − y = 3 → x = ____, y = ____

3x + 4y = 37, x = 3 → y = ____

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

2x + 9y = 22, x = 2 → y = ____

6x + 8y = 38, x = 1 → y = ____

3x + 9y = 57, x = 4 → y = ____

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

8x + 3y = 28, x = 2 → y = ____

5x + 9y = 86, x = 1 → y = ____

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

x + y = 8, x − y = -6 → x = ____, y = ____

1x + 2y = 16, x = 2 → y = ____

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

8x + 1y = 41, x = 5 → y = ____

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

5x + 1y = 29, x = 4 → y = ____

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

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