(х-3)/2-1=х
х-3-2=2х
-х=5
х=-5
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1) 576-100%
х-15%
2) х=86,4
3x^2+2y^2=77 |*3
9x^2+6y^2=77x
9x^2+6y^2=231
9x^2+6y^2=77x
231-77x=0
-77x=-231
x=3
3*(3)^2+2y^2=77
27+2y^2=77
2y^2=77-27
2y^2=50
y^2=50\2
y^2=25
y=5
Ответ:(3;5)
А(-6;0) и В(0;4)
уравнение прямой -у=Kx+b
{A: -6k+b=0
{B: 0×k+b=4
A-B: -6k+b-0-b=0-4
-6k=-4|:(-6)
k=(-4)/(-6)=4/6
k=⅔
0+b=4
b=4
y=kx+b
y=(⅔)x+4