方程式系 ワークシート

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

3x + 5y = 11, x = 2 → y = ____

4x + 7y = 57, x = 9 → y = ____

8x + 6y = 90, x = 9 → y = ____

5x + 6y = 26, x = 4 → y = ____

x + y = 6, x − y = -4 → x = ____, y = ____

9x + 4y = 50, x = 2 → y = ____

x + y = 9, x − y = 7 → x = ____, y = ____

4x + 3y = 53, x = 8 → y = ____

4x + 9y = 30, x = 3 → y = ____

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

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

4x + 4y = 36, x = 6 → y = ____

x + y = 8, x − y = 0 → x = ____, y = ____

3x + 6y = 18, x = 4 → y = ____

x + y = 9, x − y = -7 → x = ____, y = ____

4x + 5y = 37, x = 3 → y = ____

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

9x + 2y = 68, x = 6 → y = ____

2x + 3y = 43, x = 8 → y = ____