Question

resolva o módulo |2x + 1 |= |x – 3|

Answer 1

2/3 e -4

|2x + 1 |= |x – 3|

2x+1=±(x-3)

2x+1=x-3

x=-4

ou

2x+1=-(x-3)

2x=-x+3-1

2x=-x+2

3x=2

x=2/3

x=2/3 ou  x=-4