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BigorU [14]
3 years ago
13

All questions are about this system of equations:

Mathematics
1 answer:
sertanlavr [38]3 years ago
6 0
If we are eliminating x, we would multiply the 2nd equation by -5

5x + 18y = 23
x + 3y = 2....multiply by -5
-----------------
5x + 18y = 23
-5x - 15y = - 10 (result of multiplying by -5)
----------------add
0 + 3y = 13.....bye-bye x :)

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y=6
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