方程式系 ワークシート

3x + 2y = 30, x = 6 → y = ____

x + y = 9, x − y = -5 → x = ____, y = ____

1x + 5y = 18, x = 8 → y = ____

2x + 1y = 4, x = 1 → y = ____

2x + 7y = 25, x = 9 → y = ____

8x + 3y = 63, x = 6 → y = ____

3x + 8y = 55, x = 5 → y = ____

6x + 9y = 111, x = 5 → y = ____

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

x + y = 9, x − y = -3 → x = ____, y = ____

x + y = 8, x − y = -2 → x = ____, y = ____

2x + 2y = 18, x = 2 → y = ____

9x + 7y = 69, x = 3 → y = ____

x + y = 12, x − y = 4 → x = ____, y = ____

3x + 3y = 30, x = 5 → y = ____

5x + 5y = 75, x = 7 → y = ____

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

x + y = 11, x − y = 5 → x = ____, y = ____

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

9x + 5y = 99, x = 6 → y = ____