melschell123
melschell123
01-02-2018
Mathematics
contestada
I need help with 3x-y=4 y=6-2x
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sqdancefan
sqdancefan
05-02-2018
Since you have a "y=" equation, this is solved nicely by substitution.
.. 3x -(6 -2x) = 4
.. 5x -6 = 4
.. 5x = 10
.. x = 2
Then
.. y = 6 -2x
.. y = 6 -2*2 = 2
The solution is (x, y) = (2, 2).
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