1)=2х-3у+5-3х+у+4=4-x-2y 2)=4а-5b-8+2а+3b+3=6a-2b-5 3)=3u-2v+4-3v+4u+5=7u-5v+9 4)=3a-4b+6-3a-2b-6=-6b 5)=a-4b-7+c+c+4a-8+5b=5a+b+2c-15 6)=3x-5y+2z-6-2x+5y-6z+7=x-4z+1
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1)=2х-3у+5-3х+у+4=4-x-2y 2)=4а-5b-8+2а+3b+3=6a-2b-5 3)=3u-2v+4-3v+4u+5=7u-5v+9 4)=3a-4b+6-3a-2b-6=-6b 5)=a-4b-7+c+c+4a-8+5b=5a+b+2c-15 6)=3x-5y+2z-6-2x+5y-6z+7=x-4z+1