Problem $01[200]$

Solve the following Equilibrium Equations for the forces $F_{OA},F_{AC}$ and $F_{AB}$ in $N($SI Units$).$ That means, determine the values of $F_{OA},F_{AC}$ and $F_{AB}$

${\displaystyle \underset{?}{\overset{?}{}}}{F}_x=0\mathrm{.}4575|F_{OA}|+0\mathrm{.}2481|F_{AB}|-0\mathrm{.}6468|F_{AC}|=0$

${\displaystyle \underset{?}{\overset{?}{}}}{F}_y=0\mathrm{.}4575|F_{OA}|-0\mathrm{.}7442|F_{AB}|-0\mathrm{.}6468|F_{AC}|=0$

${\displaystyle \underset{?}{\overset{?}{}}}{F}_z=0\mathrm{.}7625|F_{OA}|-0\mathrm{.}6202|F_{AB}|-0\mathrm{.}4042|F_{AC}|-2000=0$