anahi00
anahi00 anahi00
  • 02-03-2016
  • Mathematics
contestada

What is the value of x in the equation 3x – y = 18, when y = 27?

Respuesta :

dancergeek22
dancergeek22 dancergeek22
  • 02-03-2016
3x-27=18
   +27  +27
3x=45
/3    /3
x= 15
Answer Link
Аноним Аноним
  • 02-03-2016
y = 27

3x-y =18
Lets substitute the equation 
= 3x- 27 = 18
   3x       = 18 + 27
   3x       = 45
     x       = 45/3
     x       = 15

So, lets check if the answer is right

3x- y = 18
3*15 - 27 = 18
   45- 27  = 18
           18= 18   CORRECT !

Therefore, the value of x is 15


Answer Link

Otras preguntas

Why do people choose to speak figuratively?
Explain ONE historical development represented in the cartoon. (SAQ)
Which figures are polygons? Select each correct answer. Figure A Figure B Figure C Figure D
Develop a healthy one day menu consisting of breakfast, lunch and dinner
​The food in our stomach needs to be digested for several hours. ​ What organ in our body is responsible for the final digestion?
What length of time does the geologic time scale cover?.
what part of speech is "thought" in "I thought long and hard about her advice"
This number is in scientific notation. 2. 4 × 10-4 Convert the number into standard notation. What is the value? 2. 4 × 10-4 =.
Hello, I need help! i am very very very confused
Describe the absolute monarchies of Spain under Philip II and France under Louis XIV. ...pls there is a high chance of brainliest.