3(5x +1) + 8 (x-2)=2 (6x-1)-9x-6
$3*(5x +1) + 8*(x-2)=2*(6x-1)-9x-6$
$15x+3+8x-16=12x-2-9x-6$
$15x+8x-12x+9x=-2-6-3+16$
$20x=5$
$x=\frac{5}{20}$ --> $x=\frac{1}{4}$
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