SOLUTION: Use the method of substitution to solve the system of linear equations. 4a=6-b 4a=2-b Could you please show me this in detail. I just don't understand it. Thank you

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Use the method of substitution to solve the system of linear equations. 4a=6-b 4a=2-b Could you please show me this in detail. I just don't understand it. Thank you      Log On


   

Question 634932: Use the method of substitution to solve the system of linear equations.
4a=6-b
4a=2-b
Could you please show me this in detail. I just don't understand it. Thank you
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
4a is both 6-b and 2-b. So 6-b = 2-b

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Another way to say it is...

4a=6-b ... Start with the first equation.

2-b=6-b ... Replace '4a' with '2-b' (since 4a = 2-b)

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Now solve for b. Then use the solution to find 'a'.