We have the expression

We have to convert the expression in a single-term expression. We apply the distributive property:

b) We have to substitute five different values into the expressions 5x+2x and 7x-1.
The first expression is equal to 5x+2x=7x.
We then can predict that the difference between 7x and 7x-1 is 1.
For example, for x=2, we have 7x=7*2=14 and 7x-1=7*2-1=14-1=13.
We can calculate if the two expressions can be equal, we write:

There is no value that can make both expressions equal.
Both equations have a difference of 1 for any value of x.
Because they have the same measurements and are equal
Answer:its algebra very simple all you want do is get x by itself
Step-by-step explanation:
you have to subtract from both sides 1
so then you'll have
4 x = (1 - x)
after that you divide by 4 from both sides you'll be left with
x = 1 - x
The conditions which must be met to use z procedures in a significance test about a population proportion include:
I. The population is greater than 10 times the sample size.
II. The probability of success multiplied by the sample size is greater than or equal to 10.
III. The probability of failure multiplied by the sample size is greater than or equal to 10.
<h3>What is Z procedure?</h3>
This is a statistical test done on data that follows a normal distribution and determines if the population means are different when the variances are known and the sample size is large.
The population must be greater than 10 times the sample size in this scenario with the other appropriate conditions being mentioned above.
Read more about Z-Test here brainly.com/question/17144617
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