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Llana [10]
2 years ago
14

Following the recommended steps for solving equations, what should be your first step in solving the given equation?

Mathematics
2 answers:
Free_Kalibri [48]2 years ago
8 0
To solve equations, you isolate the variable you are solving for on one side and everything else on the other side.

The first step to solving this equation is to combine like terms.
Combining like terms means to add up all terms that have the same variable(s) and exponent.

If no exponent is shown, then a 1 exponent is implied. The reason why we don't show a term raised to the first power is that it doesn't have any effect on the term.

I see three terms with the x variables. We can combine them. Why? Because they all have the same variable and exponent.

I'll rearrange the left-hand side to combine all the terms with the x variable.

Now we have -3 + 2x - 4x - 2x = -6
Combine all terms that have the x variable.

-3 + 2x - 4x - 2x = -6
-3 - 4x = -6

Now we have -3 - 4x = -6
What can we do now to isolate the x variable on the left-hand side?
For starters, we can add 3 to each side of the equation.
That way the -3 term will disappear.

-3 - 4x + 3 = -6 + 3
-4x = -3

Last step.
The x variable is being multiplied by the -4. If we reverse that operation
we can get the value of x.

-4x / -4 = 3 / -4
x = 3/-4 or x = -0.75



zheka24 [161]2 years ago
5 0

Answer:

Step 1 :Combine like term to perform the operation .

Step-by-step explanation:

Given  : 2x – 3 – 4x − 2x = –6.

To find : what should be your first step in solving the given equation.

Solution : We have given 2x – 3 – 4x − 2x = –6.

Step 1 :Combine like term to perform the operation .

2x - 4x - 2x -3 = -6.

-4x - 3 = -6 .

Step 2: On adding both sides by 3

- 4x = - 6 + 3 .

- 4x = -3 .

Step 3 : On dividing both sides by -4.

x = 3/4.

Therefore, Step 1 :Combine like term to perform the operation .

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What is the slope of this line ?<br> Answers : 2, 1/2, 4, and -4
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Answer:

2

Step-by-step explanation:

slope =\frac{rise}{run}

\frac{rise}{run}=\frac{2}{1} =2

<em>good luck, i hope this helps :)</em>

3 0
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Read 2 more answers
Is this Biased or Unbiased and Explain? ( Q:Are you willing to deal with noisy,heavy increases in traffic where you live just so
sleet_krkn [62]

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It is biased.

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6 0
3 years ago
Industry standards suggest that 10 percent of new vehicles require warranty service within the first year. Jones Nissan in Sumte
borishaifa [10]

Answer:

a)  0.3874

b)  0.3874

c)  0.1722

d) Mean and Standard Deviation = 0.9

Step-by-step explanation:

This is binomial distribution problem that has formula:

P(x=r)=nCr*p^{r}*q^{n-r}

Here p is probability of success = 10% = 0.1

q is probability of failure, that is 90% = 0.9

n is total number, which is 9, so n = 9

a)

The probability that none requires warranty is r = 0, we substitute and find:

P(x=r)=nCr*p^{r}*q^{n-r}\\P(x=0)=9C0*(0.1)^{0}*(0.9)^{9-0}\\P(x=0)=0.3874

Probability that none of these vehicles requires warranty service is 0.3874

b)

The probabilty exactly 1 needs warranty would change the value of r to 1. Now we use the same formula and get our answer:

P(x=r)=nCr*p^{r}*q^{n-r}\\P(x=1)=9C1*(0.1)^{1}*(0.9)^{9-1}\\P(x=1)=0.3874

This probability is also the same.

Probability that exactly one of these vehicles requires warranty is 0.3874

c)

Here, we need to make r = 2 and put it into the formula and solve:

P(x=r)=nCr*p^{r}*q^{n-r}\\P(x=2)=9C2*(0.1)^{2}*(0.9)^{9-2}\\P(x=2)=0.1722

Probability that exactly two of these vehicles requires warranty is 0.1722

d)

The formula for mean is

Mean = n * p

The formula for standard deviation is:

Standard Deviation = \sqrt{n*p*(1-p)}

Hence,

Mean = 9 * 0.1 = 0.9

Standard Deviation = \sqrt{9*0.1*(1-0.1)}=0.9

4 0
2 years ago
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