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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
＋
9
=
18
(B)
5
x
＋
9
=
−1
(C)
−
x
−
8
=
−4
(2)
x
=
7
(A)
2
x
−
8
=
6
(B)
−
x
−
9
=
−19
(C)
−2
x
=
−14
(3)
x
=
−5
(A)
x
=
2
(B)
−10
x
=
50
(C)
x
＋
3
=
0
(4)
x
=
−5
(A)
3
x
=
−18
(B)
x
−
2
=
−7
(C)
x
＋
2
=
4
(5)
x
=
−5
(A)
x
−
10
=
0
(B)
x
−
2
=
−12
(C)
7
x
−
10
=
−45
(6)
x
=
8
(A)
−6
x
=
−48
(B)
x
−
6
=
2
(C)
x
＋
4
=
0
(7)
x
=
−2
(A)
10
x
−
3
=
−23
(B)
5
x
=
10
(C)
10
x
=
20
(1)
(B)
(2)
(A)
(C)
(3)
(B)
(4)
(B)
(5)
(C)
(6)
(A)
(B)
(7)
(A)