1) у=14х+16 2) у=8х+3 3) у=5х+8 4) у=5х+4 5) у=-14х+16 6) у=2х-9 !

(2)y=14x+16
14x+16=0
14x+16
x=16:14
x=8/7
(3)y=8x+3
8x+3=0
8x+3
x=3:8
x= 3/8
(4) y=5x+8
5x+8=0
5x+8
x=8:5
x=1.6
(5)y=5x+4
5x+4=0
5x+4=0
x=4:5
= 0.8
(6) y=2x-9
2x-9=0
2x-9
x=9:2
x=4.5
(7) y= -14x+16
-14x+16=0
-14x+16
-x=16:14
-x=8/7
x= 8/7
по другому
2
5
3
-1
7
-2