284) раскройте скобки и упростите выражения 1)5(3x-4)=
-2(4x-7)=
-0,5(24x+8)=
2) 10(0,15x-0,6)=
-1/2(4,8-5x)=
-3/7(49+2,1x)=
3)5x-4(0,25x-1)=
5,6-0,6(5x+2)=
7x+3/5(0,5-15x)=


(даю 50 баллов)
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