Opposite angles are equal, so we know that C=2x and D=5x+5 as well.
The sum of the interior angles of any quadrilateral is 360, so we have

So, the measures of the angles are

Answer:
Step-by-step explanation:
x -12 > 0
x > 12
if x > 12 x-12
if x = 12 0
if x < 12 12-x
Answer:
Concept: Algebraic Analysis

- Those two symbols indicate one solution

- Those symbols indicate a range of values

- Indicates two bounded answers
- In an inequality there is always a solution
Answer:
Second option is the right choice.
Step-by-step explanation:
Divide the second equation by -5 and you'll get the equation same as first equation.

So, it has infinite many solutions.
Answer:
The value of
is 4.
Step-by-step explanation:
Given:

We have to solve for x.
Solution:

Now by using Multiplication property of equality we will Multiply both by -6 we get;

Now by using Division property of equality we will divide both by 5 we get;

Hence The value of
is 4.