Ркшиьь уравнение x+5\x+2=3\8
(х+5)/(х+2)=3/8 3(х+2)=8(х+5) 3х+6=8х+40 3х-8х=40-6 -5х=34 х= - 34/5
( X + 5 ) / ( X + 2 ) = 3 / 8 8(X + 5 ) = 3( X + 2 ) 8x + 40 = 3x + 6 8x - 3x = 6 - 40 5x = - 34 X = - 34/5 X = - 6,8 Ответ ( - 6,8 )