3(2x-5)+ 4(4-x)=0 Плиз
3(2х-5)+4(4-4х)=0 3*2x-5*3+4*4-4*4x=0 6x-15+16-16x=0 -10x=-1 x=1/10
6X - 15 + 16 - 4X = 0 2X = - 1 X = - 0.5