方程式系 ワークシート

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

4x + 7y = 57, x = 2 → y = ____

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

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

6x + 8y = 62, x = 1 → y = ____

2x + 4y = 10, x = 3 → y = ____

9x + 9y = 63, x = 3 → y = ____

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

4x + 8y = 72, x = 2 → y = ____

7x + 7y = 91, x = 5 → y = ____

7x + 3y = 80, x = 8 → y = ____

9x + 9y = 18, x = 1 → y = ____

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

5x + 9y = 33, x = 3 → y = ____

1x + 2y = 15, x = 1 → y = ____

1x + 3y = 22, x = 4 → y = ____

6x + 8y = 70, x = 5 → y = ____

7x + 4y = 43, x = 1 → y = ____

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

x + y = 10, x − y = 0 → x = ____, y = ____