mam kolejne równanka :) dzisiaj proszę ze sprawdzeniem ( L=P)
1) 3(x-4)-2(2x-5)= -4
2) 2(x+4)-5(x+3)= 2
3) -2(x+3)+4(2x+3)= 6
1) L=
P=
2)L=
P=
3)L=
P=
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a )3(x-4)-2(2x-5)= -4
3x-12-4x+10=-4
-x-2=-4
-x=-2 / : -1
x=2
b) 2(x+4)-5(x+3)= 2
2x+8-5x-15=2
-3x-7=2
-3x=2+7
-3x=9 / : -3
x= -3
c) -2(x+3)+4(2x+3)= 6
-2x-6+8x+12=6
6x+6=6
6x=6-6
6x=0 /:6
x=0