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3 years ago

Solve the system using elimination. x − 4y = 4 and -3x − 4y = 12

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

6 0

x - 4y = 4

-3x - 4y = 12

Subtract the first equation from the second

x - 4y = 4

-4x = 12

Divide the second equation by (-4)

x - 4y = 4

x = -3

Subtract the second equation from the first

- 4y = 7

x = -3

Divide the first equation by (-4)

y = -7/4

x = -3

<h3>So, the solution is x = -3 and y = - 7/4</h3>

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