Решите уравнение 4-7x/15+1-x/3=4-2x+1/5
( 4 - 7X ) + 5 * ( 1 - X ) = 12 - 3*( 2X + 1 ) 4 - 7X + 5 - 5X = 12 - 6X - 3 9 - 12X = 9 - 6X 6X = 0 X = 0
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