方程式系 ワークシート

7x + 5y = 68, x = 9 → y = ____

9x + 4y = 54, x = 2 → y = ____

3x + 2y = 35, x = 7 → y = ____

x + y = 11, x − y = 1 → x = ____, y = ____

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

5x + 1y = 34, x = 5 → y = ____

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

5x + 3y = 34, x = 2 → y = ____

6x + 8y = 14, x = 1 → y = ____

x + y = 4, x − y = 2 → x = ____, y = ____

7x + 8y = 105, x = 7 → y = ____

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

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

5x + 8y = 49, x = 5 → y = ____

7x + 2y = 24, x = 2 → y = ____

4x + 6y = 42, x = 9 → y = ____

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

9x + 9y = 90, x = 7 → y = ____

x + y = 8, x − y = 4 → x = ____, y = ____

1x + 8y = 76, x = 4 → y = ____