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You are asking for 3 points which solve:
-x + 2y = 2
We have both the x and the y on the same side of the equals sign, which doesn't help you very much. So our goal is to get y to be 'alone'. We call this "getting y in terms of x".
Since both the x and the y are of order 1, we know that this is a linear equation, so we expect that there are actually an infinite number of solutions.
-x + 2y = 2
2y = 2 + x
y = 1 + (1/2) *x
Now that we have the linear equation in slope-intercept form, we can simply plug in any 3 values that we want to get our answer. Try plugging in the numbers x=0, x=2 and x=4 as an easy example.
What else can I help you with?
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