camilajune6969 camilajune6969
  • 04-09-2020
  • Mathematics
contestada

If y = 3x and 2x + 4y = 12, then 2x + 4(3x) = 12

Respuesta :

cvinta cvinta
  • 08-09-2020

Answer:

x=6/7 and y=18/7

Step-by-step explanation:

If y = 3x and 2x + 4y = 12,

then substitute the value of y with 3x

2x + 4(3x) = 12

2x+12x=12

14x=12

x=12/14=6/7

y=3x=3*(6/7)=18/7

Answer Link

Otras preguntas

how many cups of water should be mixed with 1/4 cup of vinegar to make the cleaning solution?
why is it critical to your cells to be near capillaries
Gina rented shoes, bowled 3 games, and bought 1 order of nachos. she used a coupon for 1/2 off the price of her bowling games. What was Ginas total cost before
Did feudalism create a stable form of government?
why is the square root of a perfect square always rational
how can you write 0.45 as fraction and a percentage ,please show work
the reproductive system of a male mammal provides
an explanation describe if a green pet mates with an orange pet, can they have any orange offspring.
solve the simultaneous equation 4x+7y=1 3x+10y=15
testosterone directly affects the