tana211 tana211

24-06-2015
Mathematics

contestada

true or false the expression 5x - 3(2x-4) is equivalent to the expression 12-x

Respuesta :

24-06-2015

[tex]5x-3(2x-4)=5x-6x+12=-x+12=12-x[/tex]

True.

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itsHannah itsHannah

24-06-2015

To check, just simplify the first expression:

5x - 3(2x - 4)
BODMAS: BRACKETS FIRST
5x - 6x + 12
THEN SIMPLIFY X
-x + 12
REARRANGE TO GIVE THE SECOND EXPRESSION
12 - x

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