Respuesta :
Transfer the 3x over to the right side and switch the sign to negative and transfer the +3 to the left side and switch the sign to negative so the equation turns out to be 3x-3x=3-3 and that equals 0
3x+3=3X+3
Move +3x to the right. Sign changes from +3x to -3x
3x-3x+3= 3x-3x+3
3= 3
Subtract 3 for both sides.
3-3= 3-3
0= 0
Answer:all real numbers
