Question

(-3)^x-1 =-243 find the value of x

Answer 1

Answer: 6

Step-by-step explanation

We know that (-3)^5=-243

therefore                

x-1=5

x=5+1=6

therefore x=6

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Answer 2

Given-

${( - 3)}^{x - 1} = - 243$

To find - x

Solution -

$\implies {( - 3)}^{x - 1} = - 243$

$\implies {( - 3)}^{ x - 1} = {( - 3)}^{5}$

$\implies \: x - 1 = 5$

$\implies \: x = 5 + 1$

$\implies \: x = 6$

$Therefore \: the \: value \: of \: x \: is \: 6$