$MathMaster logo$

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

111 Answers

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

$2a+21=-3$

$2a=-3-21$

$2a=-24$

$a=-12$

Frequently asked questions (FAQs)

What is the length of the hypotenuse in a right triangle if the two shorter sides measure 3 and 4 units?

+

What is the sum of 35 and 72?

+

Find the equation of an ellipse with a major axis of length 10 and a minor axis of length 4. (

+

New questions in Mathematics

How many percent is one second out a 24 hour?

1. Suppose we have a good whose quantity supplied changed from 100 to 120 units when the price increased from $10 to $12 per unit. Compute the price elasticity of supply using the midpoint method

The sum of two numbers is equal to 58 and the largest exceeds by at least 12. Find the two numbers

∫ √9x + 1 dx

Calculate the value of a so that the vectors (2,2,−1),(3,4,2) and(a,2,3) are coplanar.

The question is using rule 72 determine Kari wants to save 10,000 for a down payment on a house. Illustrate the difference in years it will take her to double her current 5,000 savings based on 6%, 12% and 18% interest rate .

Congratulations, you have saved well and are ready to begin your retirement. If you have $1,750,000.00 saved for your retirement and want it to last for 40 years, and will earn 10.8% compounded monthly: What is the amount of the monthly distribuion? 216.50 How much interest is earned in retirement?

List the remaining zeros of the polynomial with the given zeros Zeros are: 2, 3i, and 3 + i

How to factorise 5y^2 -7y -52

A given initial capital in simple interest at the annual rate and for 27 months produced the accumulated capital of 6600 um if the same capital had been invested at the same rate but during 28 months the said accumulated capital would be increased in an amount corresponding to 0.75% of the initial capital Calculate the initial capital and the annual rate at which it was invested

A salesperson earns a base salary of $600 per month plus a commission of 10% of the sales she makes. You discover that on average, it takes you an hour and a half to make $100 worth of sales. How many hours will you have to work on average each month for your income to be $2000?

X^3 - x^2 - 4 = 0, what are the values of x?

The average undergraduate cost per tuition, fees, room, and board for all institutions last year was $26,025. A random sample of 40 institutions of higher learning this year indicated that the mean tuition, fees, room, and board for the sample was $27,690, and the population standard deviation is $5492. At the 0.05 level of significance, is there sufficient evidence that the cost has increased? (Remember to follow the steps in hypothesis testing)

A factory produces glass for windows. The thickness X of an arbitrarily selected pane of glass is assumed to be Normally distributed with expectation μ = 4.10 and standard deviation σ = 0.04. Expectation and Standard deviation is measured in millimeters. What is the probability that an arbitrary route has a thickness less than 4.00 mm?

Solve for z: 2z-6=10z+2

How many moles are there in 235 grams of potassium thiosulfate pentahydrate? K2S2O3*5(H2O)

Find the symmetric point to a point P = (2,-7,10) with respect to a plane containing a point Po = (3, 2, 2) and perpendicular to a vector u = [1, -3, 2].

The domain of the function f(x)=x+7x2−144 is (−∞,), ( ,), and ( , ∞).