6 – 3(2x – 4) = 2(1 + x) A. –2 B. 0 C. –1 D. 2

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asked Oct 16, 2016 31.2k views

2 votes

6 – 3(2x – 4) = 2(1 + x)

A.

–2

B.

0

C.

–1

D.

2

Mathematics
high-school

Alexander Ulitin asked

by Alexander Ulitin

6.9k points

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2 Answers

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Answer - D

6 - 3(2x - 4) = 2(1 + x)
6 - 6x + 12 = 2 + 2x
18 - 6x = 2 + 2x
18 = 2 + 8x
16 = 8x
2 = x

Oyse answered Oct 19, 2016

by Oyse

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3 votes

6 - 3(2x - 4) = 2(1 + x)
6 - 3(2x) + 3(4) = 2(1) + 2(x)
6 - 6x + 12 = 2 + 2x
6 + 12 - 6x = 2 + 2x
18 - 6x = 2 + 2x
+ 6x + 6x
18 = 2 + 8x
- 2 - 2
16 = 8x
8 8
2 = x
The answer is D.

Aymericbeaumet answered Oct 23, 2016

by Aymericbeaumet

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