方程式系 ワークシート

8x + 7y = 70, x = 7 → y = ____

4x + 6y = 28, x = 1 → y = ____

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

6x + 4y = 14, x = 1 → y = ____

7x + 6y = 46, x = 4 → y = ____

5x + 7y = 54, x = 1 → y = ____

7x + 6y = 25, x = 1 → y = ____

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

6x + 6y = 54, x = 8 → y = ____

5x + 6y = 59, x = 1 → y = ____

5x + 8y = 93, x = 9 → y = ____

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

3x + 5y = 55, x = 5 → y = ____

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

x + y = 10, x − y = -4 → x = ____, y = ____

5x + 9y = 49, x = 8 → y = ____

8x + 9y = 86, x = 4 → y = ____

1x + 1y = 15, x = 7 → y = ____

x + y = 15, x − y = 1 → x = ____, y = ____

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