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

331 students went on a field trip. six buses were filled and 7 students traveled in cars. how many students were in each bus
Simplify 4.510 please
Which president gave much power to the Civil Service Commission? He was a reformer and his reforms probably cost him the nomination for his second term. a. Benj
What is the meaning of a solgan?
A football coach divides 42 players into equal groups for a warmup drill. Each group should have at least 5 players but no more than 8 players. What are the pos
The genocides in both Cambodia and Bosnia are examples of
Asif is saving for a toy that costs £16. He saves 80p a week. How many weeks does need to save.
Which equation represents an equilibrium system??
Which equation represents this statement? One-third of a number is 21.
E= 12 (2/9)+5 (3/9)+4 (4/9)=