Ответы на вопрос:
1) 1/3х + 6 = 2х; 5/3х = 6; х = 6 : 5/3; х = 18/5; х = 3 3/ 2) 1/2( 4х - 2) = -7; 2х - 1 = -7; 2х = -7 + 1; 2х = -6; х = -6 : 2; х = - 3) 5/6х + 3 = 1/6х; 5/6х - 1/6х = -3; 4/6х = -3; 2/3х = -3; х = -3 : 2/3; х = - 9/2; х = - 4 1/2.
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