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3 years ago

How to find where the equations meet.

Mathematics

1 answer:

zzz [600]3 years ago

3 0

The first sentence → x - 2y = -1
the second one → 3x - 2y = -3

multiply the first one by -1
you can get → -x + 2y = 1

plus two sentences together
you can get → 2x = -2

so you are able to know that x = -1
and y = 0

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