hanksdude
hanksdude hanksdude
  • 03-10-2016
  • Mathematics
contestada

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

5
7
45
63

Respuesta :

trissyrobby
trissyrobby trissyrobby
  • 03-10-2016
Okay so we first can take out "y" and put in 27 since the question is stating that y=27.
Now we are going to Add 27 to both of the sides to make the problem look like this: 
3x-27+27=18+27
Got it?
Now we have step 2. 
Divide 3 by BOTH sides.

And you get 15, Therefore you have x=15
Answer Link
austinpaulbeame
austinpaulbeame austinpaulbeame
  • 23-09-2019

Answer:

it would be 7

Step-by-step explanation:

3x-1/9=18, y=27

3x-1/9X27=18

3x-3=18

   +3  +3

3x=21

divide each by 3

x=7

Answer Link

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