Answer:
x = 1
Step-by-step explanation:
2x + 1 = -1
2x = -1 - 1
2x = -2
x = -2 ÷ -2
x = 1
Well, it might not be important for most problems but..
If you're dividing, and the answer is a repeat..
You can estimate.
Example - 2.678 | You can estimate it to 2.68 and use that as an answer instead of a very long answer that's repeated.
I hope this helps.
5n-4 is 4 less than 5 times a number
4 x 6 = 24 is multiplication property
Also in the option
B is Multiplication property
Therefore
the answer is B
At least 21....I hope you pass what ever you are doing!