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k0ka [10]
3 years ago
5

Solve the system of equations 2r - 6y= 28 -x-y = 14 PLEASE HELP

Mathematics
1 answer:
o-na [289]3 years ago
3 0

Answer:

\displaystyle [-7, -7]

Step-by-step explanation:

{2x - 6y = 28

{−x - y = 14

−⅙[2x - 6y = 28]

{−⅓x + y = −4⅔

{−x - y = 14

____________

\displaystyle \frac{-1\frac{1}{3}x}{-1\frac{1}{3}} = \frac{9\frac{1}{3}}{-1\frac{1}{3}} \\ \\

x = -7[Plug this back into both equations above to get the y-coordinate of −7]; \displaystyle -7 = y

I am joyous to assist you anytime.

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