Is 2(6-3x) + x equivalent to 2(3x) + x

 When "x = 1" ;  "2(6-3x) + x"  DOES EQUAL "2(3x) + x" .


2(6-3x) + x = 12 - 6x + x  = 12 - 5x ;

2(3x) + x = 6x + x = 7x ;

Does:  12 - 5x = 7x ?

Add "5x" to each side of equation:

12 - 5x + 5x = 7x + 5x ;

to get:

12 = 7x + 5x ;

12 = 12x ; 

Divide each side of the equation by "12" ; 

12 / 12 = 12x / 12 ; 

to get:  1 = x ;  ↔ x= 1 ;

 "When "x = 1" ;  "2(6-3x) + x"  DOES EQUAL "2(3x) + x" .