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

7. How would you find additional words that have meanings similar to the entry word? 8. How does the meaning of friend help you understand the meaning of foe? 9
Please help me out please
i neeed helpppp can someone help me?
What is the circumference of a circle with a diameter of 21 m? (use for pi)
What is the affect of beginning a story this way ?
a responsibility of the vice president is to
Plz answer my question quickly!!!!!!!
“The peace, the freedom, and the security of 90 percent of the population of the world is being jeopardized by the remaining 10 percent who are threatening a br
In this triangle, what is the value of x? Enter your answer, rounded to the nearest tenth, in the box. x =
Order the following integers from least to greatest: −41,−51,−38, 50, 41 and 13