8x-2=-9+7x can you do it step by step

Answers

Answer 1
Answer: In going to move constants to one side and variables to another by adding and subtracting.

8x -2 + 2 - 7x = -9 + 2 + 7x -7x

8x -7x = -9 + 2
Now solve

X = -7
Answer 2
Answer:

well u move all the variables to the left side, so 8x is already in the left but 7x isnt so you move 7x to the left side of the equal sign which makes 7x to -7x.

8x-2-7x=-9

you move the -2 to the right side of the equal sign which becomes +2.

8x-7x=-9+2

you do the math which 8x-7x=1x and -9+2=-7

so.... 1x=-7

and x=-7. Make sure to always combine like terms.

To make sure it is correct replace the x with the -7 and

8(-7)-2=-9+7(-7)

-56-2=-9-49

-58=-58

so x= -7



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1. Evaluate the expression when x=2, y = 3, and z= -9:

Barbara claims that her horse can do simple addition problems. She showed her horse 8 different cards with simple addition problems, and the horse was able to tap his foot to indicate whether the answer was correct or incorrect. The horse correctly identified all 8 cards. Eric didn't believe Barbara's horse could do addition, so he set up a trial to test whether the horse was just guessing. He flipped 8 coins to see how many would land tails up. He did this 53 times, and the results are shown in the dot plot below:

Answers

Answer:

Yes, the chances of getting 8 correct by guessing are very low

there is no dot plot below so how are we going to help you

In 2010, the population of Alaska was about 710,200. What is the number written in word form?

Answers

The number written in word form Seven Hundred Ten Thousand Two Hundred.

What is number ?

The prime numbers 1, 2, 3, 4, and so forth are the original examples.  Numerals, which are symbols that represent certain numbers more generically, include "5", which stands in for the number five. Basic numerals are typically arranged in a numeral system, which is an ordered manner to represent any number, as only a very small number of symbols can be learned. The most widely used number representation scheme is the Hindu-Arabic number system, which enables the depiction of any number using a combination of 10 basic numerical symbols, or "digits."

So 1st place is ones and 2nd will be 10s and 3rd term will be 100s and the list goes go.

So the Given population of Alaska was about 710,200.

Hence, In word form, it will be Seven Hundred Ten Thousand Two Hundred.


Learn more about number, by the following link
brainly.com/question/25677592
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seven hundred ten thousand two hundred :)))
I hope this is helpful
have a nice day

What is 8 2/7 - 7 1/3

Answers

.95238 in decimal form or 20/21 in fraction form

58/7 - 22/3

20/21 Fraction form

20/21= 0.95 ( decimal )


I hope that's help and have a great night


How do i work out: 3/4-3/5

Answers


In order to add or subtract fractions, they must have the
same denominator.  You need to change both of these
fractions to have the same denominator ... without changing
their values, of course.

The smallest common denominator for these fractions is  20 .

     3/4  is the same amount as  15/20 .

     3/5  is the same amount as  12/20 .

Now that they have the same denominator, you can do
the subtraction.

First step: Get a common denominator.

3/4:-

3*5=15
4*5=20

3/5:-

3*4=12
5*4=20

Now we can subtract easily because we have common denominators.

15/20-12/20

15-12/20

3/20

Now we have our most simple answer: 3/20


Need help on finding the equation for both graphs

Answers

for #1 it is y=-3/2x+4 the -3/2 is the slope and the 4 is the y intercept

for #2 it is y=6/+2 the 6/2 is the slope and the 2 is the y-intercept

the y-intercept is where the line passes through the y axis

How do you round money to the nearest cent?Like for ex.:$2.15 to the nearest cent

Answers


To round money to the nearest cent you would see in the ones place what that number is and if it is at or higher than 5 it would round up to 2.20               

Did that help any I hope so:) if not tell me I will have another strategy