$$\frac { 4 } { 5 } + 2 x = \frac { 1 } { 3 } - \frac { 2 } { 3 } x$$
$x=-\frac{7}{40}=-0.175$
$$\frac{4}{5}+2x+\frac{2}{3}x=\frac{1}{3}$$
$$\frac{4}{5}+\frac{8}{3}x=\frac{1}{3}$$
$$\frac{8}{3}x=\frac{1}{3}-\frac{4}{5}$$
$$\frac{8}{3}x=\frac{5}{15}-\frac{12}{15}$$
$$\frac{8}{3}x=\frac{5-12}{15}$$
$$\frac{8}{3}x=-\frac{7}{15}$$
$$x=-\frac{7}{15}\times \frac{3}{8}$$
$$x=\frac{-7\times 3}{15\times 8}$$
$$x=\frac{-21}{120}$$
$$x=-\frac{7}{40}$$
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