Answer:
4
Step-by-step explanation:
3x-5=7x-21
3x-7x=5-21
-4x=-16 ( divide by -4 both sides)
x= 4
Yes it does bdffgjkhhh BGC. Bc. G. G. G. Y. Y. Y
One fifth of a number n is equal -7 as an equation would look like this:
1/5 n = -7 / * 5 (both sides)
n = -35
So if number n equals -35, then it's true that 1/5n equals -7.
I'd say A, since there, all the operations are the opposite from the original function.
Hope it helped,
BioTeacher101