bradyndubois1021
bradyndubois1021 bradyndubois1021
  • 02-06-2020
  • Mathematics
contestada

What is the value of x in the equation
3x - y = 30, when y = 15?

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-06-2020

Answer:

x = 15

Step-by-step explanation:

3x - y = 30

Let y = 15

3x - 15 = 30

Add 15 to each side

3x-15+15 = 30+15

3x= 45

Divide each side by 3

3x/3=45/3

x = 15

Answer Link
Hi1315
Hi1315 Hi1315
  • 02-06-2020

Answer

x=15

Step-by-step explanation:

[tex]3x - y = 30 \\ 3x = 30 + y \\ x = \frac{30 + y}{3} \\ \\ [/tex]

[tex]y = 15[/tex]

[tex]x = \frac{30 + y}{3} \\ x = \frac{30 + 15}{3} \\ x = \frac{45}{3} \\ x = 15[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer Link

Otras preguntas

puritans were people who wanted to?
how is social status directly related to health care?
studying mathematics in the night is better than the morning study and why? give me your opinion please share it with me i'm thinking to study math at night but
Read the passage. (1) Many American men were drafted during World War II. (2) Many other men volunteered to serve. (3) In fact, so many men entered the armed se
who were two important explorers for spain, and what did they accomplish?
is the number 7.885 a rational number?
Colise has 2 vases of flowers that each hold 10 red and 5 yellow roses. michelle has the same total number of roses but in 3 vases. each vase has 6 red roses. h
Solve for x. 5 x (−2)=−8
the cost of 12 gallons of gas is 28.68 how many miles can you expect to drive
conflict management is dealing with conflict in either a _________________.