41,4 * ( 14/23х + 5/9 ) - 79,8 * ( 8/19x - 5/6 ) = 76,941.4=41 4/10=41 2/5=207/579.8=79 8/10=79 4/5=399/576.9=76 9/10=769/10207/5*( 14/23х + 5/9 ) - 399/5 * ( 8/19x - 5/6 ) = 769/10 домножим всё на 5207*( 14/23х + 5/9 ) - 399 * ( 8/19x - 5/6 ) = 769/2207*14/23*х+207*5/9-399*8/19*х+399*5/6=769/29*14х+23*5-21*8х+66,5*5=384,5126х+115-168х+332,5=384,5-42х+447,5=384,5-42х=384,5-447,5-42х=-63 разделим все на -212х=3х=3/2х=1,5