Respuesta :
Answer: A
Step-by-step explanation:
[tex]5x+3=4x[/tex]
Subtract 5x from both sides to isolate x's on one side and independent values on the other
[tex]-5x+5x+3=4x-5x[/tex]
[tex]3=-x[/tex]
Multiply by -1 to make x positive
[tex]-3=x[/tex]