1) 12-8х+24=6+4х 2) (на картинке)
1) 12-8x+24-6-4x=0 -4x+36-6=0 -4x=-30 x=7.5 2)0.18x-2.52=-7.2x+27 7.2x+0.18x=27+2.52 7.38x=29.52 x=4