SOLUTION: So I have a basic question about slope intercept. This is an equation in my book that I'm not following (I understand how to go about solving the question but not how the signs wor

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Question 998804: So I have a basic question about slope intercept. This is an equation in my book that I'm not following (I understand how to go about solving the question but not how the signs work)
This example in the book is called 'Solving a System Linear Equations:
to graph each equation, write the equation in slope intercept form.
-2y = -x-2
divide all those by -2 and we get
y=1/2x+1
what I don't understand is how 2 divided by -2 equals positive one in the answer? I thought we simple changed the sign to + because of y=mx+b but in another equation
-x+3y=-6
(after dividing all by 3)
the answer is y= 1/3x-2
I thought it ould have been +2?
why is are the answers to these slope intercept question sometimes + and sometimes - in the answers?
Answer by josgarithmetic(39838) (Show Source):
You can put this solution on YOUR website!
Review how signed numbers work, meaning, their operations.
(-)(-)=(+);
(-)(+)=(-);
(+)(-)=(-);
(+)(+)=(+).
This is similar for division.

Solve for y in terms of x.

Distributive Property on the right member, and multiplicative inverse very simply on the left member.
----should be well understood, and hopefully you can fill-in any steps
which you believe to be "missing".

That is now in slope-intercept form.
The y-intercept is (0,1), and the slope is .
-
Start the graph at point (0,1), and according to slope, move up 2 units and move rightward
by 1 unit; and keep going for whichever other points you want to find on the line.