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X - y = 11 2x + y = 19
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4 votes
X - y = 11
2x + y = 19

User Henri Koski
by
3.7k points

1 Answer

3 votes

Answer:

(10,-1)

Explanation:

x - y = 11

2x + y = 19

Add the two equations together to eliminate y

x - y = 11

2x + y = 19

-----------------------

3x = 30

Divide each side by 3

3x/3 = 30/3

x = 10

Now find y

2x+y =19

2(10) +y = 19

20+y = 19

Subtract 20 from each side

20-20 +y = 19-20

y = -1

User Mkebri
by
4.4k points
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