-2,4x+43-6(8-4x) при x=17,7
-2.4x+43-6(8-4x) ,x=17.7 -2.4x+43-6(8-4x) =-2.4x+43-48+24x=21.6x-5= =21.6*17.7-5=3882.32-5=377.32