2x - 3 = 2x - 1
- this makes no sense so there is no solution to this equation.
2x - 3 = -(2x - 1)
2x - 3 = -2x + 1
4x = 4
x = 1
Checking this solution:-
2(1) - 3 = -1
-(2(1) - 1) = -1( 1) = -1
So this solution is valid.
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