9х-6(-2+х)=-7*5х+20 -3(6х+2)-1=4(х-3)-9 -5(-5+3х)-1=9х+5*6 - вопрос №2818884962752036214395531956 от hatira801 25.11.2020 19:22

Question

Математика: 9х-6(-2+х)=-7*5х+20 -3(6х+2)-1=4(х-3)-9 -5(-5+3х)-1=9х+5*6

hatira801 · Answer

-3(6х+2)-1=4(х-3)-9-18х - 6 - 1 = 4х - 12 - 9-18х - 4х = -12 - 9 + 6 + 1-22х = -1422х = 14х = 14 : 22х = 7/11-5(-5+3х)-1=9х+5*625 - 15х - 1 = 9х + 30-15х - 9х = 30 - 25 + 1-24х = 624х = -6х = -6 : 24х = -0,25...