方程式系 ワークシート

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

x + y = 4, x − y = 0 → x = ____, y = ____

x + y = 5, x − y = 1 → x = ____, y = ____

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

7x + 3y = 13, x = 1 → y = ____

1x + 7y = 16, x = 9 → y = ____

2x + 7y = 63, x = 7 → y = ____

4x + 8y = 36, x = 7 → y = ____

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

7x + 5y = 68, x = 4 → y = ____

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

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

x + y = 9, x − y = 1 → x = ____, y = ____

x + y = 13, x − y = 1 → x = ____, y = ____

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

7x + 6y = 57, x = 3 → y = ____

x + y = 10, x − y = -2 → x = ____, y = ____

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

5x + 6y = 58, x = 2 → y = ____

8x + 9y = 112, x = 5 → y = ____