Answer:
m = 
Step-by-step explanation:
f = 4m + 3m -1
f = 7m - 1
<em>Adding 1 to both sides</em>
f+1 = 7m
<em>Dividing both sides by 7</em>
m = 
The answer to the above question is three
Answer:
set compass to the radius of the circle
Step-by-step explanation: when constructing an equilateral triangle by hand . circle constructing by set compass to the radius of the circle and rotate it and come to the initial point
Since vertical angles are congruent, (4x+7)=5(x-4). So simplifying we get 4x+7=5x-20. If we add 20 on both sides we get 4x+27=5x. Now when we subtract x from both sides, we get x=27