Question

x+2x-1-3=x qual ovalor de X

Answer 1

x+2x-1=x
x+2x-x=3+1
2x=4
x=4/2
x=2 

X= 2 

Answer 2

x+2x-1-3=x
 3x-4=x
 3x=x+4
 2x=4
  x=2

Espero ter ajudado ;)