Answer:
x = 3
Step-by-step explanation:
slope = [tex]\frac{y_{2} - y_{1} }{x_{2} -x_{1} }[/tex]
Using the your two points the slope = m = [tex]\frac{-8 + 5}{7-x} = \frac{-3}{4}[/tex]
[tex]\frac{-3}{7-x} =\frac{-3}{4}[/tex]
Since the numerators are equal, then the denominators must be equal.
So, 7 - x = 4
-x = -3
x = 3
