1/2(x-2)-(1/2+3)=1/2(x-7/2)-3/4(2x+1)+3/4x
1/2(x-2)-(1/2+3)=1/2(x-7/2)-3/4(2x+1)+3/4x
1/2(x-2)-(1/2+3)=1/2(x-7/2)-3/4(2x+1)+3/4x
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$\dfrac{1}{2}\left(x-2\right)-\left(\dfrac{1}{2}+3\right) = \dfrac{1}{2}\left(x-\dfrac{7}{2}\right)-\dfrac{3}{4}\left(2x+1\right)+\dfrac{3}{4}x$
$\dfrac{1}{2}x-1-\left(\dfrac{1+6}{2}\right) = \dfrac{1}{2}x-\dfrac{7}{4}-\dfrac{\cancel6^3}{\cancel4_2}x-\dfrac{3}{4}+\dfrac{3}{4}x$
$\dfrac{1}{2}x-1-\dfrac{7}{2} = \dfrac{1}{2}x-\dfrac{7}{4}-\dfrac{3}{2}x-\dfrac{3}{4}+\dfrac{3}{4}x$
$mcm= 4$ quindi moltiplica tutto per 4 ed elimini i denominatori:
$2x-4-14 = 2x-7-6x-3+3x$
$2x-18 = -x-10$
porta i valori con incognita a sinistra e i valori noti a destra cambiando il segno se passi l'uguale:
$2x+x = -10+18$
$3x = 8$
dividi ambo le parti per 3 in modo da isolare l'incognita:
$\dfrac{\cancel3x}{\cancel3} = \dfrac{8}{3}$
$x= \dfrac{8}{3}$ $(= 2,\overline6)$