put values if x=3/4. -2x+5=2(2x-1)-1
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Explanation:
-2(3/4)+5=2(2(3/4)-1)-1
=(-6/4)+5=2((6/4)-1)-1
=(-3/2)+5=2((3/2)-1)-1
=-3/2+10/2=2(3/2-2/2)-1
=7/2=2(1/2)-1
=7/2=1-1
=7/2=0
=where LHS is not equal to RHS
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