3 50% Draw angle ABC of size 65º. A- B X+
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First find the x and y values because where the lines will intersect, they share the point of the intersection so they will share the x and y coordinates.
Rearrange equations
To cancel y, we must do equation 1 minus equation 2. Similarly:
So the x coordinate is 3.
The y coordinate can be found with substitution of x into one of the equations:
So where the two lines intersect is at the point (3, 7), which is the solution to the equations.
The formula to find the slope of a line is 
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I'm not sure if my fraction looks right, so I'll add it in a separate attachment too.
I'm not sure if my fraction looks right, so I'll add it in a separate attachment too.