$$2(x-1)+3(x+2)=19$$
$x=3$
$$2x-2+3\left(x+2\right)=19$$
$$2x-2+3x+6=19$$
$$5x-2+6=19$$
$$5x+4=19$$
$$5x=19-4$$
$$5x=15$$
$$x=\frac{15}{5}$$
$$x=3$$
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