eclipsestar eclipsestar
  • 03-05-2015
  • Mathematics
contestada

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

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iloveonedirection
iloveonedirection iloveonedirection
  • 03-05-2015
[tex]8x=2x+30 \\ \\ (8x)-2x=(2x+30)-2x \\ \\ 6x=30 \\ \\ \frac{6x}{6} = \frac{30}{6} \\ \\ x=5[/tex]
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Аноним Аноним
  • 03-05-2015
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
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