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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
=
4
(A)
x
−
8
=
−4
(B)
x
−
10
=
−13
(C)
−3
x
=
−21
(2)
x
=
8
(A)
9
x
=
27
(B)
x
−
9
=
−1
(C)
8
x
−
8
=
−80
(3)
x
=
3
(A)
4
x
−
1
=
−37
(B)
7
x
=
21
(C)
−
x
=
7
(4)
x
=
1
(A)
7
x
−
9
=
−2
(B)
7
x
=
42
(C)
−5
x
=
30
(5)
x
=
10
(A)
x
−
5
=
0
(B)
4
x
＋
9
=
49
(C)
3
x
＋
7
=
10
(6)
x
=
6
(A)
−3
x
=
9
(B)
x
＋
3
=
9
(C)
5
x
=
−10
(7)
x
=
−4
(A)
8
x
=
−80
(B)
7
x
−
5
=
−26
(C)
x
−
7
=
−11
(1)
(A)
(2)
(B)
(3)
(B)
(4)
(A)
(5)
(B)
(6)
(B)
(7)
(C)