Properties for Equivalent Expressions
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
Card 1
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QUESTION
Use the distributive property to rewrite
4
(
2
x
−
3
)
4(2x - 3)
4
(
2
x
−
3
)
.
QUESTION
Which property justifies
x
⋅
7
=
7
x
x \cdot 7 = 7x
x
⋅
7
=
7
x
?
QUESTION
Which property justifies
3
+
(
x
+
5
)
=
(
3
+
x
)
+
5
3 + (x + 5) = (3 + x) + 5
3
+
(
x
+
5
)
=
(
3
+
x
)
+
5
?
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ANSWER
The associative property of addition. Only the grouping changes, not the order.
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