obloudit1spk

2023-02-25

How to find $f\left(-1\right)$ given $f\left(x\right)=2x+2$?

### Answer & Explanation

izuzmem5nxc

$9×{81}^{x}=1/{27}^{x}-3$
${3}^{2}×{3}^{4x}=\left(1/3{\right)}^{3}\left(x-3\right)$
${3}^{2}+4x={3}^{-}\left[3\left(x-3\right)\right]$
Bases are equal. Exponents must be equal.
$2+4x=-\left(3x-9\right)$
2+4x = -3x+9
4x+3x = 9-2
7x = 7
x = 7/7
x = 1
Thus, the value of x is 1

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