Answer :

Hadizaali14
-84 = 3(5n + 2)
 
Multiply everything in the parenthesis.

-84 = 3(5n + 2)
          3*5n + 3*2

-84 = 15n + 6 
Subtract 6 from both sides

-84 = 15n + 6 
-6                -6

-90 = 15n
Divide 15 from both sides

-90 = 15n
--------------
15       15

-6 = n

-6 is your answer.
andyharmsen
First divide both sides by the coefficient, -84, to leave (-3 - 5p) = -176/-84 = 176/84

Then add 3 to both sides, which gives -5p = (176/84) + 3 = 62/21 + 3

Now divide both sides by the coefficient -5:

p = (125/21)/-5 = -25/21

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