help with solving an equation
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pka
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\(\displaystyle \L
\frac{{ax + aw + bx + bw}}{{x^2 - w^2 }}\frac{{x - w}}{{a^2 - b^2 }} = \frac{{\left( {a + b} \right)\left( {x + w} \right)}}{{\left( {x + w} \right)\left( {x - w} \right)}}\frac{{\left( {x - w} \right)}}{{\left( {a - b} \right)\left( {a + b} \right)}}\)
\frac{{ax + aw + bx + bw}}{{x^2 - w^2 }}\frac{{x - w}}{{a^2 - b^2 }} = \frac{{\left( {a + b} \right)\left( {x + w} \right)}}{{\left( {x + w} \right)\left( {x - w} \right)}}\frac{{\left( {x - w} \right)}}{{\left( {a - b} \right)\left( {a + b} \right)}}\)