3 years ago

Solve the system of linear equations. 15x - 5y = -20 -3x + y = 4

Mathematics

1 answer:

disa [49]3 years ago

3 0

Answer:

Infinite solutions.

Step-by-step explanation:

Use the elimination method:

15x - 5y = -20

-3x + y = 4 Multiply this equation by 5:

-15x + 5y = 20 Now add this to the first equation:

0 = 0

So the 2 equations are the same and there are infinite solutions.

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Georgia [21]

Answer: $x+\frac{b}{2a}=\pm \frac{\sqrt{b^2 - 4ac}}{\sqrt{4a^2}}$

Step-by-step explanation:

We can rewrite the left hand side as a perfect square, more specifically

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2 years ago

When you owe money, you have a negative balance. You owe $200 to your bank. You pay $30 back. What is your new bank balance?

Pachacha [2.7K]

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3 years ago

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3 years ago

− 1 4 ( − 8 x + 12 y

lawyer [7]

Answer:

I am assuming the question is

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3 years ago

-3x + y = -24 y = 7x + 22

levacccp [35]

Answer:

first one: 8

second one: 3

Step-by-step explanation:

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(y would be 1; the 7x moves to the other side.) meams:

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3 years ago

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