1) 3(2a-3)-6a-1=6а-9-6а-1=-10
3) 5(2a-1)-4a+5=10а-5-4а+5=6а
5) 2(4a-1)-7a+5=8а-2-7а+5=а+3
7) 4-6a-2(a + 1)=4-6а-2а-2=2-8а
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1) 3(2a-3)-6a-1=6а-9-6а-1=-10
3) 5(2a-1)-4a+5=10а-5-4а+5=6а
5) 2(4a-1)-7a+5=8а-2-7а+5=а+3
7) 4-6a-2(a + 1)=4-6а-2а-2=2-8а