SOLUTION: 3x + 2y =8 and y= X-1, then x=

Question 774099: 3x + 2y =8 and y= X-1, then x=

Found 2 solutions by solver91311, zkiya_:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

No solution. That is because and are NOT the same thing.

Now, if what you REALLY meant was that your system of linear equations is:

That is a horse of a completely different color. Since the second equation gives you an expression in that is equal to, and that means "the same as", , you can replace anywhere you see it with that expression in , namely , thus:

Now all you have to do is solve the single variable equation for

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it

Answer by zkiya_(6) (Show Source): You can put this solution on YOUR website!
3x + 2y = 8
y = x-1
3x + 2(x-1) = 8
3x + 2x - 2 = 8
5x = 10
x = 2
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