kkcool5000 kkcool5000

19-10-2018
Mathematics

contestada

evaluate the expressions -8x+5-2x-4+5 when x=2 before and after simplifying. wich method do you prefer explain?

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sleepysheepy sleepysheepy

19-10-2018

If x=2

Before :
-8(2)+5-2(2)-4+5
-16+5-4-4+5
-11-4+5
-14

After :
-10(2)+6
-20+6
-14
Simplify :
-8x+5-2x-4+5
-8x-2x+5-4+5
-10x+6

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