方程式系 ワークシート

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

8x + 3y = 26, x = 1 → y = ____

7x + 7y = 77, x = 4 → y = ____

7x + 3y = 40, x = 4 → y = ____

5x + 1y = 53, x = 9 → y = ____

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

7x + 3y = 59, x = 5 → y = ____

3x + 8y = 52, x = 4 → y = ____

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

7x + 3y = 55, x = 7 → y = ____

7x + 4y = 78, x = 6 → y = ____

7x + 3y = 25, x = 1 → y = ____

6x + 4y = 34, x = 3 → y = ____

x + y = 14, x − y = 4 → x = ____, y = ____

x + y = 6, x − y = 4 → x = ____, y = ____

3x + 5y = 53, x = 6 → y = ____

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

8x + 8y = 56, x = 2 → y = ____

9x + 4y = 35, x = 3 → y = ____

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