$MathMaster logo$

MathMaster

Home
general
5a 3 a 7 3

Question

5a-3.(a-7)=-3

269

likes

1344 views

Answer to a math question 5a-3.(a-7)=-3

$Expert avatar$

4.6

110 Answers

$5a-3a+21=-3$

$2a+21=-3$

$2a=-3-21$

$2a=-24$

$a=-12$

Frequently asked questions (FAQs)

What is the sum of a mixed number, its factor, and a real number?

+

Math question: "Simplify log(base2)8 + log(base3)27 - log(base4)16."

+

Question: What are the component values of a unit vector pointing in the direction of a line with equation y = 2x + 1?

+

New questions in Mathematics

a bank finds that the balances in its savings accounts are normally distributed with a mean of $500 and a standard deviation off of $40. What is the probability that a randomly selected account has a balance of more than $400?

Supposed 60% of the register voters in a country or democrat. If a sample of 793 voters is selected, what is the probability that the sample proportion of Democrats will be greater than 64% round your answer to four decimal places

calculate the normal vector of line y = -0.75x + 3

how many arrangement can be made of 4 letters chosen from the 8 letters of the world ABBSOLUTE

Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll? Draw the diagram

Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll?

Substitute a=2 and b=-3 and c=-4 to evaluate 2ac/(-2b^2-a)

Calculate the boiling temperature and freezing temperature at 1 atmosphere pressure of a solution formed by dissolving 123 grams of ferrous oxide in 1.890 grams of HCl.

The sick-leave time of employees in a firm in a month is normally with a mean of 100 hours and a standard deviation of 20 hours. Find the probability that the sick-leave time of an employee in a month exceeds 130 hours.

A psychologist is investigating the levels of test anxiety in various university courses. Anxiety is measured on a scale ranging from 0 to 100, where 0 indicates the complete absence of anxiety and 100 represents an extreme level of anxiety. From the data obtained, it has been discovered that the psychology score is triple that of nursing, and in turn, the latter has a score 10 points lower than the nutrition major. Furthermore, the score in the veterinary degree is 15 points higher than that of nutrition. Finally, if we add the scores of all the races, we will obtain a total of 173 points. Pose the equation that represents the situation described in the previous problem and determine: What is the score that psychology obtained regarding its anxiety level before the exams?

Find the equation of a straight line that has slope 3 and passes through the point of (1, 7) . Write the equation of the line in general forms

A post office has three categories of letters: 60% are from businesses, 30% are individual mail, and the remaining 10% are government mail. 5% of the letters from businesses have address errors, 10% of the individual mail has address errors, while 1% of the government mail has address errors. If we receive a letter with an address error, what is the probability that it is individual mail?"

there are 500,000 bacteria at the end of a pin point. 1000 bacteria can make a person sick. then bacteria at the tip of a pin point can make 500 people sick. Also, many people do not know that bacteria can (reproduce). Let's say there are 5 bacteria and we leave it for 15 minutes. bacteria will multiply to 10. if left for up to 30 minutes, 20 bacteria will form. if left up to 45 minutes. bacteria will multiply up to 40. every 15 minutes the bacteria will double 2. if you start with five bacteria that reproduce every 15 minutes, how manu bacteria would you have after 12 hours ?

Identify the slope and y intercept y=11+2/3x

the product of a 2-digit number and a 3-digit number is about 50000, what are these numbers

4m - 3t + 7 = 16

7-1=6 6x2=12 Explain that

What is the set-off agreement? Make your own example, describe and put in T accounts how you record transactions.