2(x-3)+3(x-4)+4(x-5)=0
2(x-3)+3(x-4)+4(x-5)=0
2(x-3)+3(x-4)+4(x-5)=0 2x-6+3x-12+4x-20=0 2x+3x+4x=0+6+12+20 9x=38 /:9 x=4,(2) proszę.! ; *
2(x-3)+3(x-4)+4(x-5)=0 2x-6+3x-12+4x-20=0 2x+3x+4x=6+12+20 9x=38 //:9 x=4,2
2x-6+3x-12+4x-20=0 9x=38 |:9 x= 4 3/9 x= 4 1/3