Answer:
x-30
Step-by-step explanation:
Firstly, you do the first step, which is, 3x-18+4x+12-6x, then you continue simplifying it: 7x-18+12-6x.
Keep it on and on, the next step: x-18+12, add 18 and 12 together you get 30.
So the final answer is x-30
Answer:

Step-by-step explanation:
It's the right triangle. The formula of an area of a right triangle:

We have:

Use tangent:



Substitute:
<em>convert the decimal to the fraction</em>
<em>cross multiply</em>
<em>divide both sides by 14281</em>


Calculate the area:

4 68⁄375 is the purpose answer
Answer:
2x
Step-by-step explanation:
2x if you don't know the value of x.
40+20=60 +4= 64 that is the answer