0.6y-1.5=0.3(y-4) 0.5(4-2a)=a-1.8 7(3=x)=2(x-5)=8 - вопрос №4872872061503405421873258025070021416 от Lololoshka98 01.03.2023 18:10

Question

Математика: 0.6y-1.5=0.3(y-4) 0.5(4-2a)=a-1.8 7(3=x)=2(x-5)=8 -0.2(5-0.7x)+0.02=1.4(x-1.6)

Lololoshka98 · Answer

0.6y-1.5=0.3(y-4) 0,6y-1,5=0,3y-1,20,6y-0,3y=-1,2+1,50,3y=0,3y=1================0.5(4-2a)=a-1.8 2-a=a-1,8-a-a=-1,8-2-2a=-3,8a=3,8:2a=1,9==================7(3+x)+2(x-5)=8 21+7x+2x-10=811+9x=89x=8-119x=-3x=-3:9x===================-0.2(5-0.7x)+0.02=1.4(x-1,6)-1+0,14x+0,02=1,4x-2,24-0,98+0,14x=1,4x-2,241,4x-0,14x=-0,98+2,241,26x=1,26x=1...