Respuesta :

TSO
[tex]\frac{1}{2}a - \frac{1}{2} = \boxed{\bf{ \frac{1}{2}(a-1)}}[/tex]
♥ Let's start off with the formula to solve:
[tex] \frac{1}{2} a - \frac{1}{2} [/tex]
Now solve that:
[tex] \frac{1}{2} a-1[/tex]
Final asnwer: [tex] \frac{1}{2} a-1[/tex]
♥Hope this helps!♥

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