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valeeeelav valeeeelav
  • 09-01-2017
  • Mathematics
Answered

3x-4x+21=15 what is the answer to this question ? and how do I get my answer?

Verified Answer :

atqiyanafisa atqiyanafisa
  • 09-01-2017

3x - 4x + 21= 15; -1x + 21 - 21= 15 - 21; -1x  ÷ -1 = -6 ÷ -1; x = 6.
The answer is x = 6.

Answer Link
Roberto5588
Roberto5588 Roberto5588
  • 09-01-2017

3x-4x+21=15
\/
-1x+21=15
-21 -21
_______
-1x=-6
__. __
-1. -1
x=6

Answer Link

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