SOLUTION: solve the linear system: 3x + 3y= 5 y= -x Please help! thank you

Question 107912: solve the linear system:
3x + 3y= 5
y= -x
Please help! thank you
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given system

Now plug in . In other words, replace each with . Notice we've eliminated the variables. So we now have a simple equation with one unknown.

Multiply

Combine like terms on the left side

Simplify

Since this equation is never true for any x value, this means there are no solutions.

So the system is inconsistent

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