Answer :

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[tex]\dfrac{\mathrm dy}{\mathrm dx}+y=e^{5x}[/tex]
[tex]e^x\dfrac{\mathrm dy}{\mathrm dx}+e^xy=e^{6x}[/tex]
[tex]\dfrac{\mathrm d(e^xy)}{\mathrm dx}=e^{6x}[/tex]
[tex]e^xy=\displaystyle\int e^{6x}\,\mathrm dx[/tex]
[tex]e^xy=\dfrac16e^{6x}+C[/tex]
[tex]y=\dfrac16e^{5x}+Ce^{-x}[/tex]

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