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3 years ago

What is the y value in the solution to this system of linear equations?

Mathematics

1 answer:

Travka [436]3 years ago

8 0

Answer:

The y-value is -20

Step-by-step explanation:

So let's solve this by Elimination method;

-2(4x + 5y = -12)

4(2x + 3y = -16)

Let's Distribute;

-8x - 10y = 24

8x + 12y = -64

So x cancels out because -8 + 8 = 0

-10y + 12y = 2y

24 - 64 = -40

2y = -40

Divide both sides by 2;

y = -20

Now lets plug in y to find the value of x;

4x + 5(-20) = -12

4x - 100 = -12

Add 100 to both sides;

4x = 88

Divide both sides by 4;

x = 22

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Step-by-step explanation:

1. Expand by distributing terms

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3 years ago

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Answer:

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Step-by-step explanation:

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$\text{Speed}=\frac{\text{Distance}}{\text{Time}}$

We will equate both speeds as:

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