Answer :
Once you simplify with the combination of like terms and “bringing the baby to the mom” (moving x), you’ll figure out that all real numbers are solutions. Hope this helps!!
infinite solutions
4x-5=x-5+3x
combine like terms
4x - x -3x= 5-5
0=0
4x-5=x-5+3x
combine like terms
4x - x -3x= 5-5
0=0