$$\frac{2x+5}{3}=\frac{1}{2}$$
$x = -\frac{7}{4} = -1\frac{3}{4} = -1.75$
$$2x+5=\frac{1}{2}\times 3$$
$$2x+5=\frac{3}{2}$$
$$2x=\frac{3}{2}-5$$
$$2x=\frac{3}{2}-\frac{10}{2}$$
$$2x=\frac{3-10}{2}$$
$$2x=-\frac{7}{2}$$
$$x=\frac{-\frac{7}{2}}{2}$$
$$x=\frac{-7}{2\times 2}$$
$$x=\frac{-7}{4}$$
$$x=-\frac{7}{4}$$
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