SOLUTION: i'm lost with this. Please help. 1. 7a- b= 15a, for a 2.8c + 6j =5p, for c

Algebra ->  Equations -> SOLUTION: i'm lost with this. Please help. 1. 7a- b= 15a, for a 2.8c + 6j =5p, for c      Log On


   

Question 175964: i'm lost with this. Please
help. 1. 7a- b= 15a, for a
2.8c + 6j =5p, for c
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
1. 7a- b= 15a, for a
7a-15a=b combine the a terms.
-8a=b divide both sides by -8
a=b/-8 ans.
2.8c + 6j =5p, for c
8c=5p-6j subtrsct -6j from both sides.
c=(5p-6j)/8 ans. divide both sides by 8.