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月 日( )
● 次の方程式の解として正しいものを選びなさい
[0D1-00]
(1)
−9
x
=
63
(A)
x
=
3
(B)
x
=
−9
(C)
x
=
−7
(2)
−9
x
=
81
(A)
x
=
−9
(B)
x
=
−6
(C)
x
=
−8
(3)
−8
x
=
−80
(A)
x
=
−7
(B)
x
=
10
(C)
x
=
−4
(4)
x
+
8
=
4
(A)
x
=
−4
(B)
x
=
6
(C)
x
=
−6
(5)
8
x
+
6
=
38
(A)
x
=
4
(B)
x
=
10
(C)
x
=
−1
(6)
x
−
8
=
−6
(A)
x
=
2
(B)
x
=
8
(C)
x
=
5
(7)
x
+
2
=
5
(A)
x
=
−10
(B)
x
=
0
(C)
x
=
3
(1)
(C)
(2)
(A)
(3)
(B)
(4)
(A)
(5)
(A)
(6)
(A)
(7)
(C)