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

Scientists divide rocks into groups based on_________
what is greater 0.7 or 7/9?
Give 3 examples to show work being done.
what is a similar quote for Romeo and Juliet "my bounty is as boundless as the sea . My love as deep , the more i give to thee , the more i have , for both are
Ratio equal to the ratio given 12:7
Why does 2 pi divided by 1/3 equal 6 pi?
pythagorean theorem If l = 12 cm and m = 35 cm, what is the length of n?
What was the Islamic Golden Age?
what is the negative of -1/3 and why??
Before the Civil War, the cotton plantations of the ___ South depended on British textile companies for their markets.A.antebellumB.anteriorC.avant-garde