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Furkat [3]
3 years ago
7

I need help with 3x-y=4   y=6-2x

Mathematics
1 answer:
telo118 [61]3 years ago
8 0
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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