помогите решить!!!!
задание такое: раскройте скобки и приведите подобные слагаемые.
А) -5(х+3)+4(х-2)-6(2х+1)
Б)0,2(6х-5)-4(0,2х-2)
В)0,4(1,5у+3)-2,5(3-0,6у)
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