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31 votes
31 votes
Solve the following system of equations by elimination
5x + 16y = -16
-9x – 8y = 8

User Basil Bourque
by
2.9k points

1 Answer

21 votes
21 votes

Answer:

x= 0, y = -1

Explanation:

5x + 16y = -16

-9x – 8y = 8. , multiply both sides of this equation by 2

5x + 16y = -16

-18x – 16y = 16 , add both equations so the y will eliminate

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-13x = 0, divide both sides by -13

x = 0

5·0 + 16y = -16, substitute x= 0 in the first equation and solve for y

16y = -16 , divide both sides by 16

y = -1

The solution of the system of equation is the point ( x= 0, y = -1)

User Peter Kota
by
2.8k points