Answer:
See Below.
Step-by-step explanation:
We want to verify:

We will utilize the following identities:

And:

So, by substitution, we acquire:

Distribute:

The first and third term will cancel:

Combine like terms:

Answer:
x = 20
Step-by-step explanation:
These angles are equal to each other because they are vertical angles.
Hence, we can equal the two measurements together to solve for x:
3x + 50 = 6x - 10
3x + 60 = 6x
60 = 3x
20 = x
Check your work:
3(20) + 50 = 6(20) - 10
60 + 50 = 120 - 10
110 = 110
Correct
Answer:
The answer is D
Step-by-step explanation:
Answer:
Step-by-step explanation:
-13 = 5(1+4m)-2m
-13=5+20m-2m
-13=5+18m
-13-5=18m
(-13-5)/18=m