(720+е)*501=365730    5t+30-2t=42     36*(х-3)=10-2*(х+2)

решить уравнения

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(720+е)*501=365730720+е=365730:501720+е=730е=102.5t+30-2t=423t+30=423t=12t=43.36*(x-3)=10-2*(x+2)36x-108=10-2x-436х+2х=10-4+10838x=114x=3x=