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©2026 数学クラブ http://sugaku.club/
月 日( )
● 次の方程式を解きなさい
[0E7-00]
(1)
3
x
−
10
17
=
4
4
(2)
10
x
−
7
43
=
7
7
(3)
2
x
+
10
=
2
10
(4)
−8
x
+
9
19
=
9
3
(5)
3
x
−
3
3
=
4
4
©2026 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
3
x
−
10
17
=
4
4
3
x
−
10
=
17
3
x
=
17
+
10
x
=
9
(2)
10
x
−
7
43
=
7
7
10
x
−
7
=
43
10
x
=
43
+
7
x
=
5
(3)
2
x
+
10
=
2
10
2
x
+
10
=
20
2
x
=
20
−
10
x
=
5
(4)
−8
x
+
9
19
=
9
3
−8
x
+
9
=
57
−8
x
=
57
−
9
x
=
−6
(5)
3
x
−
3
3
=
4
4
3
x
−
3
=
3
3
x
=
3
+
3
x
=
2