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$4 (x - 3) + 12 = 15 - 5 (x + 6)$ find the 'x' value ?

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answer is B.

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Detailed Solution

$(4 x - 3) + 12 = 15 - 5 (x + 6)$

$4 x - 12 + 12 = 15 - 5 x + 30$

$4 x - 12 + 12 - 155 x - 30$

$4 x - 15 + 5 x - 30$

9x - 45 = 0

9x = 45

$x = \frac{45}{9} = 5$

x = 5

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