2-3x=4-x
This is not an inequality - it is an equal sign so it is just an equation.
2-3x +x = 4-x +x
2-2x = 4
-2 -2
-2x = 2
x=-1
check
LHS=2-3*-1=2+3=5
RHS=4- -1 = 5
LHS=RHS so the answer is definitely x=-1
