１次方程式２

テストを開始するには [テスト開始] ボタンを押してください。

次の方程式を解け。

(1) 3(x + 8) = 40 – x

3x + + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x = 40 – x

3x + – 1 2 3 4 5 6 7 8 9 0 x x = 40 + – 1 2 3 4 5 6 7 8 9 0 x 24

+ – 1 2 3 4 5 6 7 8 9 0 x x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + – 1 2 3 4 5 6 7 8 9 0 x


(2) 2x – 3(x – 1) = – 4

2x – 3x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x = – 4

+ – 1 2 3 4 5 6 7 8 9 0 x x = – 4 + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + – 1 2 3 4 5 6 7 8 9 0 x


(3) 0.2x – 0.8 = 1.3x – 3

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x ×

+ – 1 2 3 4 5 6 7 8 9 0 x x – + – 1 2 3 4 5 6 7 8 9 0 x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x – + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

2x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = – 30 + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + – 1 2 3 4 5 6 7 8 9 0 x


(4) x + 4.5 = 0.25x + 3

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x ×

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x + + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x + + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x


(5)

2 ――― 3		1 ――― 2			1 ――― 4
	x +		=			x –	2

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x ×

2 × + – 1 2 3 4 5 6 7 8 9 0 x x + 1 × + – 1 2 3 4 5 6 7 8 9 0 x = 1 × + – 1 2 3 4 5 6 7 8 9 0 x x – 2 × + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x x + + – 1 2 3 4 5 6 7 8 9 0 x = + – 1 2 3 4 5 6 7 8 9 0 x x – + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = – + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x


(6)

9 ――― 16		5 ――― 4			3 ――― 8			1 ――― 2
	x –		=			x –

+ – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x ×

9x – 5 × + – 1 2 3 4 5 6 7 8 9 0 x = 3 × + – 1 2 3 4 5 6 7 8 9 0 x x – 1 × + – 1 2 3 4 5 6 7 8 9 0 x

9x – + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x = + – 1 2 3 4 5 6 7 8 9 0 x x – + – 1 2 3 4 5 6 7 8 9 0 x

9x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x x = – 8 + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

+ – 1 2 3 4 5 6 7 8 9 0 x x = + + – 1 2 3 4 5 6 7 8 9 0 x + – 1 2 3 4 5 6 7 8 9 0 x

x = + + – 1 2 3 4 5 6 7 8 9 0 x

お疲れ様でした。「採点」ボタンを押して採点してください。

結果: