\(\dfrac{1}{6}-\left(x+\dfrac{2}{3}\right)=\dfrac{-5}{7}\)
\(x+\dfrac{2}{3}=\dfrac{1}{6}-\dfrac{-5}{7}\)
\(x+\dfrac{2}{3}=\dfrac{37}{42}\)
\(x=\dfrac{37}{42}-\dfrac{2}{3}\)
\(x=\dfrac{3}{14}\)
c) \(\dfrac{x-2}{4}=\dfrac{11-x}{8}\)
\(\left(x-2\right)\cdot8=\left(11-x\right)\cdot4\)
\(8x-16=-4x+44\)
\(\left(8x+4x\right)-16=44\)
\(12x-16=44\)
\(12x=44+16\)
\(12x=60\)
\(x=60\div12\)
\(x=5\)
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