方程式系 ワークシート

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

5x + 8y = 45, x = 1 → y = ____

9x + 1y = 45, x = 4 → y = ____

x + y = 15, x − y = 3 → x = ____, y = ____

2x + 1y = 21, x = 7 → y = ____

7x + 1y = 25, x = 3 → y = ____

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

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

8x + 6y = 72, x = 3 → y = ____

5x + 3y = 38, x = 4 → y = ____

9x + 9y = 72, x = 2 → y = ____

9x + 1y = 18, x = 1 → y = ____

x + y = 2, x − y = 0 → x = ____, y = ____

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

5x + 8y = 36, x = 4 → y = ____

3x + 9y = 27, x = 3 → y = ____

5x + 5y = 60, x = 4 → y = ____

x + y = 13, x − y = -5 → x = ____, y = ____

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

9x + 6y = 126, x = 8 → y = ____