Start out by adding 50 to both sides.
2x - 50 + 50 = 150 + 50
which simplifies to
2x = 200
then divide both sides by 2
2x ÷ 2 = 200 ÷ 2
which simplifies to
x = 100
And that is your answer! Hope this helps :)
Answer:

Step-by-step explanation:
Equilateral triangles have equal sides.
Two sides are equal, so we can put up an equation to solve for
.






Let's solve for one side of the triangle.



Answer:
3x-21
Step-by-step explanation:
We want to distribute the 3
3(x-7)
3*x -3*7
3x-21
Answer:

Step-by-step explanation:
Consider the diagram attached
|AC| is the length of the radio transmission tower
If the wire is attached 13 feet from the top, at point B, |BC|=177cm and the wire is attached at point D on the ground
In Triangle BCD,


Cross multiplying
