:а) 3-0.6x=1.8x-4.2 б)3(1.2y-4)=1.2-0.4y г)m-3/2=1-3m/3 - вопрос №7496747306184231241204321331425085 от drovniashinaan 04.05.2022 09:49

Question

Математика: :а) 3-0.6x=1.8x-4.2 б)3(1.2y-4)=1.2-0.4y г)m-3/2=1-3m/3 д)x+1.4/2.5=x+0.8/5 e)|4|2x+5|-9l=6

drovniashinaan · Answer

А) 3-0,6х=1,8х-4,2-0,6х-1,8х=-4,2-3-2,4х=-7,2х=-7,2:(-2,4х)х=3б) 3(1,2у-4)=1,2-0,4у3,6у-12=1,2-0,4у3,6у+0,4у=1,2+124у=13,2у=13,2:4у=3,3е) |4|2х+5|-9|=64•2х+5•9=68х+45=68х=6-458х=-39х=-39:8=-39/8...