Ответ:
1) 3a-a-2b=2a-2b=2(a-b)
2) 3m-(5m-2t+1)=3m-5m+2t-1=-2m+2t-1=-2(m-t)-1
3) 5x-2y+3x=8x-2y=2(4x-y)
4) 4a+2a-3a-3=3a-3=3(a-1)
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Ответ:
1) 3a-a-2b=2a-2b=2(a-b)
2) 3m-(5m-2t+1)=3m-5m+2t-1=-2m+2t-1=-2(m-t)-1
3) 5x-2y+3x=8x-2y=2(4x-y)
4) 4a+2a-3a-3=3a-3=3(a-1)