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Solving systems by elimination -4x-5y=8,7x+5y=16
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3 votes
Solving systems by elimination -4x-5y=8,7x+5y=16

User Banford
by
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1 Answer

3 votes

Answer:

(8, -8)

x = 8

y = -8

Explanation:

-4x - 5y = 8

7x + 5y = 16

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

3x = 24

÷3 ÷3

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

x = 8

7x + 5y = 16

7(8) + 5y = 16

56 + 5y = 16

-56 -56

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

5y = -40

÷5 ÷5

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

y = -8

(8, -8)

I hope this helps!

User David Nguyen
by
7.6k points
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