Test:
Linear equations II - Normal
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Question 1:
Is the number
8
the root of the equation
25
−
x
=
19
A
No
B
Yes, when
x
<
0
C
Yes
D
Yes, when
x
>
0
Question 2:
Is the number
10
the root of the equation
10
y
=
100
?
A
No
B
Yes, when
x
<
0
C
Yes
D
Yes, when
x
>
0
Question 3:
Solve the equation
15
x
=
0
A
0
B
1
C
10
D
−
1
Question 4:
Solve the equation
28
x
=
112
A
4
B
1
C
0
D
−
4
Question 5:
When
x
is double it is equal to
217
. Find
x
.
A
10.85
B
1.085
C
1085
D
108.5
Question 6:
Number is equal to
28
when increased by
15
. Find that number.
A
43
B
10
C
13
D
−
13
Question 7:
Solve
28
+
(
43
+
x
)
=
135
A
−
64
B
64
C
−
46
D
46
Question 8:
Solve
85
−
7
y
=
25
A
8
4
7
B
−
8
4
7
C
−
8
1
7
D
8
1
7
Question 9:
Find the sum of the roots of the equations
25
+
5
x
=
90
and
−
7
x
=
56
A
−
5
B
5
C
10
D
−
10
Question 10:
Find two consecutive odd numbers if their sum is
72
A
35
and
37
B
34
and
35
C
33
and
35
D
30
and
42
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