10 Oct 2014, 18:07
\(2a+3(\frac{-1}{2})=1\)
\(respotas: \frac{5}{4}\)
10 Oct 2014, 18:18
\(2a-\frac{3}{2}=1\Leftrightarrow 2a=1+\frac{3}{2}\Leftrightarrow 2a=\frac{5}{2}\Leftrightarrow a=\frac{\frac{5}{2}}{2}\Leftrightarrow a=\frac{5}{4}\)
10 Oct 2014, 18:24
fff Escreveu:\(2a-\frac{3}{2}=1\Leftrightarrow 2a=1+\frac{3}{2}\Leftrightarrow 2a=\frac{5}{2}\Leftrightarrow a=\frac{\frac{5}{2}}{2}\Leftrightarrow a=\frac{5}{4}\)
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