rachelemricson rachelemricson
  • 25-01-2017
  • Mathematics
contestada

12(x - 6) = 2(x - 9) whats the answer

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gymnasticsgirl13
gymnasticsgirl13 gymnasticsgirl13
  • 30-01-2017
the anwser I know is 14x-30
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JonHenderson55
JonHenderson55 JonHenderson55
  • 30-01-2017
Answer:  x = 54/4 = 27/2 ; or, 13 1/2 ; or, 13.5  .
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12(x - 6) = 2(x - 9) ;

12x - 72 = 2x - 18 ;  

Add "72" to each side; and subtract "2x" from each side;

12x - 72 + 72 - 3x = 2x - 18 + 72 - 2x ;

4x = 54 ;
 
Divide each side by "4" ;
___________________________________
x = 54/4 = 27/2 ; or, 13 1/2 ; or, 13.5 .
___________________________________

Answer Link

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