$MathMaster logo$

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)

How many different ways can 6 students be arranged in a row?

+

What is the sum of 12, 34, and 56?

+

What is the significance of angles and sides in triangles for proving their equality?

+

New questions in Mathematics

Solution to the equation y'' - y' - 6y = 0

Solve: −3(−2x+23)+12=6(−4x+9)+9.

If O(3,-2) is reflected across x = 2. What are the coordinates of O

The length and breadth of my rectangular vegetable garden is 12,5m and 7,25m respectively. What is the perimeter of the garden?

Elliot opened a savings account and deposited $5000.00 as principal. The account earns 4% interest, compounded annually. How much interest will he earn after 5 years? Round your answer to the nearest cent.

In a store there are packets of chocolate, strawberry, tutti-frutti, lemon, grape and banana sweets. If a person needs to choose 4 flavors of candy from those available, how many ways can they make that choice?

Two events E and F are ________ if the occurrence of event E in a probability experiment does not affect the probability of event F.

Suppose 50% of the doctors and hospital are surgeons if a sample of 576 doctors is selected what is the probability that the sample proportion of surgeons will be greater than 55% round your answer to four decimal places

Divide 22 by 5 solve it by array and an area model

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

If f(x,y)=6xy^2+3y^3 find (∫3,-2) f(x,y)dx.

Let A, B, C and D be sets such that | A| = |C| and |B| = |D|. Prove that |A × B| = |C × D|

The simple average of 15 , 30 , 40 , and 45 is

In a physics degree course, there is an average dropout of 17 students in the first semester. What is the probability that the number of dropouts in the first semester in a randomly selected year has between 13 and 16 students?

17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.

A multiple choice exam is made up of 10 questions; Each question has 5 options and only one of them is correct. If a person answers at random, what is the probability of answering only 3 good questions?

Translate to an equation and solve. Let x be the unknown number: What number is 52% of 81.

A buyer purchased a North Carolina home for $475,250. The seller allowed the buyer to assume his first small mortgage with a loan balance of $110,000. How much is the excise tax paid in the transaction? $951 $729.50 $950.50 $221 none of the above

A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 55.0 min at 100.0 km/h, 14.0 min at 65.0 km/h, and 45.0 min at 60.0 km/h and spends 20.0 min eating lunch and buying gas. (a) Determine the average speed for the trip.