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3 years ago

What is 2x-4. I really don’t understand

Mathematics

1 answer:

ddd [48]3 years ago

3 0

Answer:

2 * -4 = -8

Step-by-step explanation:

2 * -4 = -8

It is just like multiplying two numbers like... 2 * 4 = 8

You must need to know that:

+a * -b = -c

-a * -b = +c

+a * +b = +c

In your question;

+a * -b = -c

a = 2

b = -4

c = -8

therefore:

2 * -4 = -8

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Answer:

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Step-by-step explanation:

Given:

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So, as per question:

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Now, plug in the 'y' value from equation (1) in to equation (2). This gives,

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Answer:

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