Question

4.(x-2)=4+2.(x-1) qual o cálculo ?

Answer 1

4 . ( x - 2 ) = 4 + 2 .( x - 1 )
4x - 4 = 4 + 2x - 2
4x - 4 = 2x + 2
4x - 2x = 2 + 4
     2x = 6
       x = 6/2
       x = 3           S = { 3 }