8x = 2x + 30 What is the value of 'x'?

asked Jan 4, 2016 74.0k views

3 votes

8x = 2x + 30
What is the value of 'x'?

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1 vote

$8x=2x+30 \\ \\ (8x)-2x=(2x+30)-2x \\ \\ 6x=30 \\ \\ (6x)/(6) = (30)/(6) \\ \\ x=5$

Recker answered Jan 6, 2016

7.2k points

5 votes

8x = 2x + 30

subtract 2x from both sides.

8x = 20 + 30
-2x -2x

divide both side by 6.

6x = 30
/6 /6

x = 30/6

x = 5

Durga Dutt answered Jan 8, 2016

8.3k points

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