Решите уравнения: а) 1-2(х-2)-х-(4х+5)
б) 2х-5/7 -3=х
в) х-7/12=1/3
г) -0,2(х-2)+0,8(х-4)=0,1(х+4)-0,9(х+2)
СРОЧНО!
ПОМОГИТЕ!
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С РЕШЕНИЕМ!!!
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