Solve
$3 (5 x + 7) + 5 (2 x - 11) = 3 (8 x - 5) - 15$

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Solution

We have,
$3 (5 x + 7) + 5 (2 x - 11) = 3 (8 x - 5) - 15$
$15 x + 21 + 10 x - 55 = 24 x - 15 - 15$
$x = 55 - 21 - 30$
$x = 55 - 51$
$x = 4$

Hence, this is the answer.

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