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1/3x-2/5=2/3(4/5x+1/3)
1/3x-2/5= 2/3• 4/5x+ 2/3• 1/3
1/3x- 2/5= 8/15x+ 2/9
8/15x- 1/3x= -2/5 -2/9
8/15x -(1•5)/(3•5)x= -(2•9)/(5•9) - (2•5)/(9•5)
8/15x- 5/15x= -18/45 -10/45
3/15x= -(18+10)/45
3/15x= -28/45
X= -28/45 :3/15
X= -28/45• 15/3
X= -28/3• 1/3
X= -28/9
X= -3 1/9
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1/3x-2/5=2/3(4/5x+1/3)
1/3• (-3 1/9) -2/5= 2/3• (4/5• (-3 1/9)+1/3)
1/3• (-28/9)- 2/5= 2/3• (4/5• (-28/9)+ 1/3)
-28/27 -2/5= 2/3• ( (-112/45)+ 1/3)
-(28•5)/(27•5) -(2•27)/(5•27)=
2/3• ( -112/45+ (1•15)/(3•15) )
-140/135 - 54/135= 2/3• (-112/45 + 15/45)
-194/135= 2/3• (-97/45)
-194/135= -194/135
-1 59/135= -1 59/135