Equations with Variables on Both Sides
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
How many solutions does
2
(
x
+
3
)
=
2
x
+
6
2(x + 3) = 2x + 6
2
(
x
+
3
)
=
2
x
+
6
have?
QUESTION
Solve
7
x
−
4
=
3
x
+
16
7x - 4 = 3x + 16
7
x
−
4
=
3
x
+
16
.
QUESTION
Solve
4
(
x
−
1
)
=
2
x
+
6
4(x - 1) = 2x + 6
4
(
x
−
1
)
=
2
x
+
6
.
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ANSWER
x
=
5
x = 5
x
=
5
. Distribute to get
4
x
−
4
=
2
x
+
6
4x - 4 = 2x + 6
4
x
−
4
=
2
x
+
6
, so
2
x
=
10
2x = 10
2
x
=
10
.
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