4-2(1z-4/3)=1/2(2z+5)
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4-2(z-4)/3=1/2(2z+5)
12-2z+8/3=(2z+5)/2
20-2z/3=(2z+5)/2
LCM=6
6 (20-2z)/3=6 (2z+5)/2
2 (20-2z)=3 (2z+5)
40-4z=6z+15
-4z-6z=-40+15
-10z=-25
-z=-25/10
-z=-5/2
negative ,negative on both will be removed.
z=5/2.
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