estamper estamper

02-07-2014
Mathematics

contestada

solving equations
what is the value of x
8x+9=5x+18

Respuesta :

02-07-2014

8x + 9 = 5x + 18

Subtract 9 from each side:

8x = 5x + 9

Subtract 5x from each side:

3x = 9

Divide each side by 3 :

x = 3

Answer Link

02-07-2014

8x+9=5x+18
⇒8x-5x=18-9
⇒3x=9
⇒x=9/3
⇒x=3

Answer Link

Otras preguntas

When dividing 878 by 31, a student finds a quotient of 28 with a remainder of 11. Check the students work, and use the check to find the error in the

During a sale at the bookstore, books sold for $3 and magazines sold for $2.50. Jan spent $16 and bought a total of 6 books and magazines. How many of each did

After 3 years what is the total amount of an investment of $1500 in an account paying 3.5% interest, compounded quarterly? A.)$1665.31 B.)$1724.36 C.)$1908.42 D

18 × (-2) ÷ 5 = (Enter answer in decimal form.)

What was Rudolph Virchow’s contribution to the cell theory?

Please help! I will thank and rate the best answer. Ten points! I am stuck on this question: -2 2/3 x 6/7

PLEASE HELP! DUE TOMORROW Write each equation in standard form. y - 4 = -3(x - 3) and y + 9= 2(x + 5)

Which of the following statements about vocabulary building is not correct? A. Reading on a daily basis is very important for building your vocabulary. B. Pronu

58%of 312 is about how many

why did washington take action to end the newburgh conspiracy