Question

If (-3)^-1 = -243, then find the value of (-7)x-6.​

Answer 1

-48

SOLUTION,

$= > { - 3}^{x} - 1 = - 243 \\ = > { - 3}^{x} - 1 = { - 3}^{5} \\ = > x - 1 = 5 \\ = > x = 5 + 1 \\ = > x = 6$

NOW PUTTING x = 6 in equation

$( - 7)x - 6$

$= - 7 \times 6 - 6 \\ = > - 42 - 6 \\ = > - 48$

Hope you helps :)

Answer 2

Step-by-step explanation:

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56.67.78.89 are 137.