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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
=
14
(B)
−
x
−
5
=
−9
(C)
x
−
4
=
−5
(2)
x
=
9
(A)
−5
x
＋
2
=
12
(B)
3
x
−
4
=
23
(C)
−9
x
=
−45
(3)
x
=
−4
(A)
10
x
=
20
(B)
10
x
−
10
=
−50
(C)
7
x
=
−56
(4)
x
=
9
(A)
x
−
5
=
−8
(B)
−3
x
=
−30
(C)
−3
x
=
−27
(5)
x
=
−7
(A)
x
＋
6
=
15
(B)
x
＋
1
=
−7
(C)
x
＋
4
=
−3
(6)
x
=
−4
(A)
x
＋
3
=
0
(B)
−8
x
=
32
(C)
7
x
＋
5
=
−23
(7)
x
=
−10
(A)
x
−
8
=
−13
(B)
−2
x
−
4
=
16
(C)
4
x
＋
3
=
11
(1)
(C)
(2)
(B)
(3)
(B)
(4)
(C)
(5)
(C)
(6)
(B)
(C)
(7)
(B)