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4x=-3+1
4x=-2 /:4
x=-2/4
x=-1/2
spr.
4*(-1/2)-1=-3
-2-1=-3
-3=-3
L=P
2x-5=x-1
2x-x=-1+5
x=4
spr.
2*4-5=4-1
8-5=3
3=3
L=P