25: \(\dfrac{3x+2}{2}+\dfrac{5-2x}{3}=\dfrac{11}{6}\)
=>\(\dfrac{3\left(3x+2\right)+2\left(5-2x\right)}{6}=\dfrac{11}{6}\)
=>\(3\left(3x+2\right)+2\left(5-2x\right)=11\)
=>\(9x+6+10-4x=11\)
=>5x=11-16=-5
=>\(x=-\dfrac{5}{5}=-1\)
26: \(\dfrac{x+2}{4}+\dfrac{2x-3}{3}=\dfrac{x-12}{6}\)
=>\(\dfrac{3\left(x+2\right)+4\left(2x-3\right)}{12}=\dfrac{2x-24}{12}\)
=>\(3\left(x+2\right)+4\left(2x-3\right)=2x-24\)
=>\(3x+6+8x-12=2x-24\)
=>\(11x-6=2x-24\)
=>9x=-18
=>\(x=-\dfrac{18}{9}=-2\)
27: \(\dfrac{2x-1}{3}-\dfrac{x-1}{2}+\dfrac{x+1}{6}=1\)
=>\(\dfrac{2\left(2x-1\right)-3\left(x-1\right)+x+1}{6}=1\)
=>\(\dfrac{4x-2-3x+3+x+1}{6}=1\)
=>\(2x+2=6\)
=>2x=4
=>x=2