Answer:
(-2 ,3)
Step-by-step explanation:
Step 1: Rewrite first equation
x = 4 - 2y
-2x + y = 7
Step 2: Substitution
-2(4 - 2y) + y = 7
Step 3: Solve <em>y</em>
-8 + 4y + y = 7
-8 + 5y = 7
5y = 15
y = 3
Step 3: Plug in <em>y</em> to find <em>x</em>
x + 2(3) = 4
x + 6 = 4
x = -2
If (55 + x)/2 is to be 67, then 55+x = 2*67, so x = 2*67 - 55 = 79
You find the slope of the line by using the formula
where x1 and y1 is the first point, and x2 and y2 are the second point.
I’m pretty sure this is the answer.
You don’t have all of the answer choices listed, sorry