упрощение
1)(p-4)x+2p-4(x+p)=0
px-4x+2p-4x-4p=0
-8x-2p+px=0
(p-8)x-2p
2)px+2(p+1)x+p+2=0
px+2px+2x+p+2=0
3px+2x+p+2=0
(3p+2)x+p+2
3)3x-5(2x-1)=2x-1
3x-10x+5-2x+1=0
-9x+6=0
x=-(6/9)=-(2/3)
упрощение
1)(p-4)x+2p-4(x+p)=0
px-4x+2p-4x-4p=0
-8x-2p+px=0
(p-8)x-2p
2)px+2(p+1)x+p+2=0
px+2px+2x+p+2=0
3px+2x+p+2=0
(3p+2)x+p+2
3)3x-5(2x-1)=2x-1
3x-10x+5-2x+1=0
-9x+6=0
x=-(6/9)=-(2/3)