4 years ago

Use elimination to solve x + 4y = -8 and x - 4y = -8

Mathematics

2 answers:

GuDViN [60]4 years ago

8 0

Add them to get 2x=-16, x=-8, substitute in either to get 4y=0, y=0.

Naya [18.7K]4 years ago

8 0

Answer:

x=-8

y=0

Step-by-step explanation:

x+4y=-8

x-4y=-8

2x=-16

x=-8

-8+4y=-8

+8 +8

4y=0

y=0

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