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Simplify 7(9x - 3) - 4(2x - 1) 34x 55x - 17 55x - 25
asked
Dec 22, 2018
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1
vote
Simplify 7(9x - 3) - 4(2x - 1)
34x
55x - 17
55x - 25
Mathematics
high-school
Emre Turkoz
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Emre Turkoz
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2
Answers
6
votes
First we distribute
7(9x-3) - 4(2x-1)
63x - 21 - 8x + 4
then we combine like terms
55x - 17
The answer is the second one
Hope this helps :)
Stanislas Piotrowski
answered
Dec 23, 2018
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Stanislas Piotrowski
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3
votes
Let's simplify step-by-step.
7
(
9x−3
)
−
4
(
2x
−1
)
Distribute:
=
(7)
(
9x
)
+
(7)
(
−3
)
+
(
−4
)
(
2x
)
+
(
−4
)
(
−1
)
=
63x
+
−21
+
−
8x
+
4
Combine Like Terms:
=
63x
+
−21
+
−
8x
+4
=
(
63x
+
−
8x
)
+
(
−21
+4
)
=
55x
+
−
17
Answer:
=
55x
−
17
Chengsam
answered
Dec 29, 2018
by
Chengsam
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