estamper estamper
  • 02-07-2014
  • Mathematics
contestada

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

Respuesta :

AL2006
AL2006 AL2006
  • 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
Riyo13
Riyo13 Riyo13
  • 02-07-2014
8x+9=5x+18
⇒8x-5x=18-9
⇒3x=9
⇒x=9/3
⇒x=3
Answer Link

Otras preguntas

80 pupils in a sports centre are surveyed. the pupils can only use the swimming pool and the gym. 32 pupils use the swimming pool. 43 pupils use the gym. 19 pu
P(-4, 6), Q(2, 5), R(3, -1), S(-3, 0) Use slope to determine whether the following is a parallelogram. Explain why or why not. Find the slope of PQ Find the slo
Line l and line m intersect.Prove: ∡1 ≅ ∡3
Disavantages of carbon
Mr.krabs sold a total of 29 krabby patties and krabby shakes. krabby patties cost $3 each while krabby shakes cost $2 each and he made a total of $70 . how many
Lucy is knitting a blanket and needs to buy some more yarn. at her local craft store, 2 skeins of yarn cost $7 and 8 skeins of yarn cost $28. what is the consta
Which of the following statements must be true about this diagram? Check all that apply. A. mz2+ mz3 = mz4 B. mz1+ m2 2 = m/3 C. m23 is greater than m<2 D.
find value o x 235 degree arc
How many solutions does the system have? y = − 7 x + 8 y = −7x - 8 A one B none C Infinite
In triangle RST, m∠R > m∠S + m∠T. Which must be true of triangle RST? Check all that apply. m∠R > 90° m∠S + m∠T < 90° m∠S = m∠T m∠R > m∠T m∠R >