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3 years ago

Vvorth 1 points

Mathematics

1 answer:

viva [34]3 years ago

6 0

Hi there!

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I believe your answer is:

"Add 4 to both sides, and then divide by 2. The solution is x = 12."

»»————-　★　————-««

Here’s why:

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To solve for 'x', we would have to use inverse operations.
We would first have to add four to both sides to undo the negative four. Addition is the opposite of subtraction.
We would then divide by 2 to isolate 'x'. Division is the opposite of multiplication.

⸻⸻⸻⸻

$\boxed{\text{Solving for 'x'...}}\\\\2x - 4 = 20\\------------\\\rightarrow 2x - 4 + 4 = 20 + 4\\\\\rightarrow 2x = 24\\\\\rightarrow \frac{2x=24}{2}\\\\\rightarrow \boxed{x = 12}$

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Hope this helps you. I apologize if it’s incorrect.

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Step-by-step explanation:

1. Approach

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Now, one has to multiply the problem's numerator and denominator by the complex conjugate of the denominator. Since a number over itself in fraction format is the same as multiplying by (1), one is allowed to do this;

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