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Algebraic Expressions
x = 4 and y = 7, so x - y =
b = 4, so 3.2b =
Algebraic Expressions
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Introduction to the basics of algebra
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Questions
25
Answers
1
b = 4, so 3.2b =
3.24
7.2
12.8
2
x = 4 and y = 7, so x - y =
-11
-3
11
3
3
If a = -3 and b = 2, a(b) = 6
True
False
4
n = 7, so 20 - 2n =
12
-4
6
8
5
x = -2 and y = -6, so x + y =
8
-2
6
-8
6
Evaluate this expression: 2(3m - 5) = 6m + 10
True
False
7
p = 6, so 2.2 + p =
8.4
-8
8.2
8
8
m = -9, so -3m =
39
-39
27
-27
9
y = -2, so -3y =
-32
-6
6
32
10
m = 9, so -3m =
12
-12
-27
-39
11
n = 7, so (n + 2)
2
=
81
9
92
12
p = 5, so p
3
=
125
53
15
13
k =
4
and f =
3
, so does
3 - 2k + 9f
=
22
?
False
True
14
m = 3, so m
2
/9 =
9
3
-3
1
15
In this expression: If
w = 3
, so
2w = ??? What mathematical operation do we use to solve this?
multiplication
addition
division
subtraction
16
w = 3, so 2w =
6
23
5
17
m = 2, so 6m
2
=
hint
: remember the order of operations (PEMDAS)
62
6
32
24
18
p = 8, so p + 2.1 =
10.1
10
10.2
19
w = 3, so -4w =
7
-12
-43
20
z = -14, so z/7 =
2
147
-147
-2
21
y = 34 and z = 2, so y/z =
6
27
17
342
22
z = -14, so z/-7 =
2
-2
-147
147
23
p = 5, so p
2
=
7
10
25
24
w =
4
and f =
5
, so
8 + 6w - 3f + 2 =
19
4
-15
15
25
x = 4 and y = 7, so y - x =
-11
3
-3
11
