1)x=y*2/27+1, y=R
2)y=x-1/2, x=R
Пошаговое объяснение:
1)
1.5x+3y-4y+12x-13.5=0
13.5x-y-13.5=0
13.5=y+13.5
x=y*2/27+1, y=R
2)
2y-6x+2.5x+5y+3.5=0
7y-3.5x+3.5=0
7y=3.5x-3.5
y=3.5x/7-0.5
y=7x/2/7-1/2
y=x/2-1/2
y=x-1/2
1)x=y*2/27+1, y=R
2)y=x-1/2, x=R
Пошаговое объяснение:
1)
1.5x+3y-4y+12x-13.5=0
13.5x-y-13.5=0
13.5=y+13.5
x=y*2/27+1, y=R
2)
2y-6x+2.5x+5y+3.5=0
7y-3.5x+3.5=0
7y=3.5x-3.5
y=3.5x/7-0.5
y=7x/2/7-1/2
y=x/2-1/2
y=x-1/2