Упростите выражения.

а)2*(4-У)+2У

б)3*(х-2)-2*(2-3х)

Решите уравнение.

а)7,3-(у-3,7)=15.

б)-3,8+(х-4,2)=36.

в)-0,2*(0,7)=0,84.

д)3*(х-2)-2*(х+4)=6.

е)(3х+8)*(2х-0,8)=0

            

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