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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
=
−1
(A)
x
＋
9
=
5
(B)
x
−
5
=
−13
(C)
x
＋
9
=
8
(2)
x
=
2
(A)
−8
x
＋
1
=
25
(B)
x
＋
9
=
16
(C)
−10
x
−
7
=
−27
(3)
x
=
7
(A)
3
x
=
−9
(B)
x
＋
2
=
9
(C)
−9
x
＋
1
=
−17
(4)
x
=
2
(A)
−
x
＋
7
=
8
(B)
10
x
＋
6
=
−84
(C)
−9
x
−
4
=
−22
(5)
x
=
6
(A)
x
＋
4
=
10
(B)
x
＋
1
=
−4
(C)
5
x
−
2
=
3
(6)
x
=
−6
(A)
x
−
10
=
−16
(B)
−6
x
＋
9
=
45
(C)
−9
x
−
6
=
75
(7)
x
=
−2
(A)
x
＋
4
=
−4
(B)
7
x
=
−14
(C)
x
＋
2
=
0
(1)
(C)
(2)
(C)
(3)
(B)
(4)
(C)
(5)
(A)
(6)
(A)
(B)
(7)
(B)
(C)