Answer:
12
Step-by-step explanation:
x-4=2(x+8)/5
let's do my favorite strategy: distributive property!
x-4=(2x+16)/5
Now we can simplify.
x-4=(2/5)x+16/5
Let's solve for x!
Subtract 2/5 from both sides
3/5)x=36/5
Now multiply both sides by 5/3, the reciprocal.
You would get 12 as x!
To write a line that is perpendicular you have flip the slope and change the sign so it would be -1/2, then you carry on like normal. So the answer is:
y-6= -1/2(x-9)
THAT THEY ARE THE SAME BUT THEN AGAIN YOU MAKE THE CHANGES YOURSELF.
x = 55
because angles in a triangles add up to 180 so 75 +50 = 125 and then 180 - 125 = 55
helped?
