Mathematics, 15.01.2021 06:20 lalacada1

What number goes in the “?”

? - 2x - 5 = 5

Answers: 3

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Answers

First, replace the “?” with an x:
x - 2x - 5 = 5

Next, combine alike terms:
[ x - 2x ] - 5 = 5
^ alike terms

This will result in:
-x - 5 = 5

You do the inverse (opposite) of -5
-x -5 = 5
+5

Once you do the plus 5, the five moves to the end of the equation:
-x - 5 = 5 + 5
+5>>>>>^

The “-5” no longer exists because you canceled it with the “+5” that you moved to the other side.
The new equation:
-x = [5 + 5]
^ you add these two

After adding you get:
-x = 10

When putting “x” into a number it will ALWAYS be 1.

You then divide both sides by the “x” (which is -1 since it it always equal to one but is negative because it has a negative sign on it)

Your new equation:
-x / -1 = 10 / -1

If you divide to negatives, this will result in a positive.

You’re left with:
-x / -1 = x (since two negatives become a positive result)
10 / -1 = 10 (if there’s a negative and positive when dividing, it will automatically become negative) [ONLY FOR DIVISION]

At the end you’re left with:
x = -10

hope this helps

Answer from: Quest

y=mx+b is the final answer! : )

Answer from: Quest

the most boring thing ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

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What number goes in the “?”

? - 2x - 5 = 5...

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