Respuesta :
First, subtract 7 from both sides.
5a = b - 7
Now divide both sides by 5.
a = b - 7 / 5
5a = b - 7
Now divide both sides by 5.
a = b - 7 / 5
you need to isolate the a
so...
subtract the 7 from both sides
5a = b - 7
then divide everything by 5
a = b/5 - 7/5
remember, what you do to one side of the equation you need to do the exact same to the other
hope this helps
so...
subtract the 7 from both sides
5a = b - 7
then divide everything by 5
a = b/5 - 7/5
remember, what you do to one side of the equation you need to do the exact same to the other
hope this helps