Question

Como se resolve a essa equação 5.[2.(x+4)-x]=2.(3x+19)

Answer 1

5.[2.(x+4)-x]=2.(3x+19)
5 . [2x+8-x] = 6x + 38
5 . [x+8] = 6x + 38
 5x + 40 = 6x + 38
 40 - 38 = 6x - 5x
           2 = x 

Resposta---> x = 2

Answer 2

5 [ 2 ( x + 4 ) - x ] = 2 ( 3x + 19 )
5 [ 2x + 8 - x ] = 6x + 38
10x + 40 - 5x = 6x + 38
10x - 5x - 6x = 38 - 40
- x = - 2 . ( - 1 )
x = 2