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Question

Solve each of the following equations and also verify your solution :

5x3(x1)4=(x3)5

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Solution

5x3(x1)4=(x3)5=100x15(x1)=12(x3)60
(L.C.M. of 3, 4, 5 = 60)
100x15x+15=12x36100x15x12x=3615
(By transposition)
100x27x=5173x=513x=5173x=5173
Verification :
L.H.S=5x3x14=5×(51)3×73517314=857351734×73=8573+1244×73=8573+3173=85+3173=5473R.H.S.=x35=517335=5121973×5=27073×5=5473L.H.S.=R.H.S.


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