Question 150340
The slope-intercept form is y=mx+b

x-2y=2 is equal to y= x/2-1
since the slope of this line is 1/2, then the slope of the line in question is -2. 

use the formula (y-y1)=m(x-x1), P(2,3)/ where x1=2, y1=3 m= -2 (in this case)
(y-3)=-2(x-2)
y-3=-2x+4
y+2x-7=0 , y=-2x+7