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Question

Solve the following equation and verify your answer:
7x-25x-1=7x+35x+4

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Solution

7x-25x-1=7x+35x+4or 35x2+28x-10x-8=35x2+15x-7x-3 [After cross multiplication]or 35x2-35x2+18x-8x=-3+8or 10x=5or x=510or x=12Thus, x=12 is the solution of the given equation.Check:Substituting x=12 in the given equation, we get:L.H.S.=7(12)-25(12)-1=7-45-2=33=1R.H.S.=7(12)+35(12)+4=7+65+8=1313=1 L.H.S.=R.H.S. for x=12

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