方程式系 ワークシート

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

8x + 5y = 62, x = 4 → y = ____

x + y = 13, x − y = 1 → x = ____, y = ____

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

x + y = 12, x − y = 2 → x = ____, y = ____

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

7x + 8y = 78, x = 2 → y = ____

6x + 4y = 30, x = 1 → y = ____

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

9x + 9y = 90, x = 7 → y = ____

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

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

5x + 2y = 31, x = 5 → y = ____

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

x + y = 10, x − y = -6 → x = ____, y = ____

1x + 8y = 75, x = 3 → y = ____

6x + 3y = 45, x = 7 → y = ____

x + y = 2, x − y = 0 → x = ____, y = ____

9x + 4y = 38, x = 2 → y = ____

1x + 3y = 33, x = 9 → y = ____