Question

find x (-1/4)-^5+(-1/7)-^7=(-7)x

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Answer 1

$\huge \bf \underline{ \underline{Solution }}$

$= ( \frac{ - 1}{4} )^{ - 5} + ( { \frac{ - 1}{7}) }^{ - 7} = - 7x \\ \\ = {( - 4)}^{5} + {( - 7)}^{7} = - 7x \\ \\ = - 1024 + ( - 823543) = - 7x \\ \\ = - 824,567 = - 7x \\ \\ = x = 117,795.28571428$

$\mathtt{Therefore \ x = 117795.29}$