x + 3 / 2 * 8 = x - 3
x+ 3- to jest ułamek
____
2
slownie : x dodac 3 dzielone na dwa
sprawdzenie :
2 ( x+ 7 ) = 3 ( 2x+5)
sprawdzenie
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((x+3)/2)*8=x-3
1/2x+3/2 )*8=x-3
4x+12=x-3
4x-x=-3-12
3x=-15/:3
x=-5
L=((-5+3)/2)*8= -1*8=-8
P=-5-3=-8 L=P
2(x+7)=3(2x+5)
2x+14=6x+15
2x-6x=15-14
-4x=1/(-4)
x=-1/4
L=2(-1/4+7)=2*6 3/4=2*27/4=54/4=13 1/2
P=3(2*-1/4+5)=3(-1/2+5)=3*4 1/2=3*9/2=27/2=13 1/2
L=P