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2014-10-13T17:18:06+03:00
A) 3(1-2x)= 32:8 3(1-2x)=4. 1-2x=4:3=1-2x=1,(3)=2x=1.(3)-1=2x=2=2:2=1 b)3y+2=12*60=3y+2=720=3y=720:2=360:3=120=> y=120 c)3(8x-4)=0=8x-4=0=8x=4=8:4=2=>x=2
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