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-2(x-2)+5(2x-3)-5=10x
-2x+4+10x-15-5=10x
-2x=16
x=-8
spr.
-(-8-2)/5+(2*(-8)-3)/2-1/2=-8
-(-10)/5+(-19)/2 -1/2=-8
2-9½-½=-8
-7½-½=-8
-8=-8
L=P