Ответ:
1)3(8a-4)+6a=24a-12+6a=30a-12
2)7p-2(3p-1)=7p-6p+2=p+2
3)2(3x-8)-5(2x+7)=6x-16-10x-35=-4x-51
4)3(5т-7)-(15т-2)=15т-21-15т+2=-19
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Ответ:
1)3(8a-4)+6a=24a-12+6a=30a-12
2)7p-2(3p-1)=7p-6p+2=p+2
3)2(3x-8)-5(2x+7)=6x-16-10x-35=-4x-51
4)3(5т-7)-(15т-2)=15т-21-15т+2=-19