方程式系 ワークシート

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

3x + 8y = 84, x = 4 → y = ____

1x + 1y = 7, x = 2 → y = ____

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

7x + 5y = 37, x = 1 → y = ____

6x + 4y = 40, x = 4 → y = ____

x + y = 12, x − y = -6 → x = ____, y = ____

4x + 2y = 34, x = 5 → y = ____

3x + 5y = 35, x = 5 → y = ____

x + y = 12, x − y = 6 → x = ____, y = ____

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

2x + 4y = 14, x = 3 → y = ____

9x + 3y = 72, x = 5 → y = ____

2x + 3y = 30, x = 6 → y = ____

7x + 5y = 64, x = 7 → y = ____

2x + 3y = 13, x = 5 → y = ____

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

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

8x + 3y = 47, x = 4 → y = ____

8x + 7y = 59, x = 3 → y = ____