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