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Luba_88 [7]
3 years ago
12

Find a solution to the following system of equations. -2x + y= -3 -x+2y+3

Mathematics
1 answer:
Oksanka [162]3 years ago
6 0

For this case we have the following system of equations:-2x + y = -3\\-x + 2y = 3

We multiply the first equation by -2:

4x-2y = 6

We add the equations:

-x + 2y = 3\\4x-2y = 6

Adding we have:

4x-x-2y + 2y = 3 + 6\\3x = 9\\x = \frac {9} {3}\\x = 3

We look for the value of "y":

-x + 2y = 3\\-3 + 2y = 3\\2y = 3 + 3\\2y = 6\\y = \frac {6} {2}\\y = 3

So, the solution is (x, y) :( 3,3)

Answer:

(x, y) :( 3,3)

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