SOLUTION: To solve quation -21=7(p-10) which operation should be applied first. I need help on my hw please thankyou.

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: To solve quation -21=7(p-10) which operation should be applied first. I need help on my hw please thankyou.      Log On


   

Question 624226: To solve quation -21=7(p-10) which operation should be applied first.
I need help on my hw please thankyou.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

To solve quation -21=7(p-10) which operation should be applied first.

Note:  Rule of thumb is to first apply the Distributive Property. 

 -21 = 7(p-10)    |Distributing the 7 

 -21 = 7p - 70

  49 = 7p

   7 = p