SOLUTION: I need to figure out the numerical value of variables a,b,and c. 3a-5b+5c=21

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations -> SOLUTION: I need to figure out the numerical value of variables a,b,and c. 3a-5b+5c=21      Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 315235: I need to figure out the numerical value of variables a,b,and c. 3a-5b+5c=21
Answer by Fombitz(13828) About Me  (Show Source):
You can put this solution on YOUR website!
You can get a value of each variable in terms of the constants and other variables.
As an example,
3a-5b%2B5c=21
3a=21%2B5b-5c
a=%2821%2B5b-5c%29%2F3
From what you write, I'm assuming that's not what you're looking for.
To get a numerical value for 3 variables, you need 3 independent equations that describe the relationships between the three variables.