14-21х-6х-2=4+3х
-27х-12=4+3х
-30х=16
х=-1.875
45/72-33/144-20/64 = 90/144-33/144-20/64 = 57/144-20/64 = 19/48-10/32 =
19/48-5/16 = 19/48-15/48 = 3/48 = 1/16
<span> y(x)=2/x-1
A(1;1)
1=2/1-1
1=1 - верно</span>⇒A∈y(x)
B(0;-1)
-1=2/0-1 - неверно⇒B∉y(x)
C(2;0)
0=2/2-1
0=0 - верно⇒ С∈y(x)
Д(4;-1/2)
-1/2=2/4-1
-1/2=-1/2 - верно⇒Д∈y(x)
=0,42x–0,46y–1,24y–0,76x=–0,34x–1,7y
3/7+(-9/14)=3/7-9/14=6/14-9/14=-3/14