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月 日（ ）
● 次の解が 解として適当な方程式を選びなさい
[0D0-00]
(1)
x
=
2
(A)
x
＋
3
=
2
(B)
9
x
=
18
(C)
−5
x
=
−10
(2)
x
=
6
(A)
x
−
1
=
−2
(B)
x
−
7
=
1
(C)
−
x
−
9
=
−15
(3)
x
=
−2
(A)
−5
x
＋
1
=
46
(B)
−6
x
＋
6
=
30
(C)
−9
x
=
18
(4)
x
=
−10
(A)
x
−
2
=
1
(B)
4
x
＋
4
=
28
(C)
x
＋
1
=
−9
(5)
x
=
5
(A)
7
x
＋
8
=
57
(B)
x
−
6
=
−1
(C)
x
＋
8
=
11
(6)
x
=
5
(A)
−2
x
=
−12
(B)
x
−
8
=
−3
(C)
−10
x
=
100
(7)
x
=
−2
(A)
x
−
7
=
−9
(B)
−9
x
=
−54
(C)
−10
x
=
−80
(1)
(B)
(C)
(2)
(C)
(3)
(C)
(4)
(C)
(5)
(B)
(6)
(B)
(7)
(A)