Question 3
5x + 9 = 5 + 3x

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Solution

5x + 9 = 5 + 3x
$\Rightarrow 5 x - 3 x = 5 - 9$
$\Rightarrow 2 x = - 4$
$\Rightarrow x = \frac{- 4}{2} = - 2$
To check,
$5 x + 9 = 5 + 3 x \Rightarrow 5 \times (- 2) + 9 = 5 + 3 \times (- 2)$
$\Rightarrow - 10 + 9 = 5 - 6 \Rightarrow - 1 = - 1$
$\Rightarrow L . H . S . = R . H . S$ .
Hence, it is correct.

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