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Ainat [17]
3 years ago
14

Please help me answer this question????

Mathematics
1 answer:
Alchen [17]3 years ago
7 0

Elimination method means you're essentially. "subtracting" one equation from another.

x-y=17

- x+y=-1

---------

-2y=18

Now we'll solve x+y=-1 and -2y=18 separately.

-2y=18

Divide both sides by -2.

y=-9

x-9=-1

Add 9 to both sides.

x=8

The solutions are x=8 and y=-9, or (8,-9).

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