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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
=
10
(A)
8
x
=
80
(B)
x
−
10
=
−20
(C)
x
=
4
(2)
x
=
−6
(A)
10
x
＋
10
=
0
(B)
2
x
=
−12
(C)
−2
x
−
8
=
10
(3)
x
=
−10
(A)
x
＋
10
=
0
(B)
x
＋
8
=
6
(C)
x
−
1
=
9
(4)
x
=
−10
(A)
−
x
−
10
=
0
(B)
x
−
10
=
−18
(C)
−6
x
−
7
=
−25
(5)
x
=
3
(A)
10
x
=
10
(B)
x
＋
10
=
13
(C)
x
−
10
=
−1
(6)
x
=
7
(A)
x
−
1
=
6
(B)
−3
x
=
6
(C)
x
−
6
=
−10
(7)
x
=
−6
(A)
−8
x
=
−40
(B)
−9
x
=
90
(C)
5
x
＋
6
=
−24
(1)
(A)
(2)
(B)
(3)
(A)
(4)
(A)
(5)
(B)
(6)
(A)
(7)
(C)