dss354201
dss354201 dss354201
  • 04-06-2020
  • Mathematics
contestada

how would you change x + 3y = 18 -3x - 12y = -75 to eliminate y

Respuesta :

tramserran
tramserran tramserran
  • 05-06-2020

Answer:  [tex]\bold{y=-\dfrac{1}{3}x+6}[/tex]

                [tex]\bold{y=-\dfrac{1}{4}x+\dfrac{25}{4}}[/tex]

Step-by-step explanation:

  x + 3y = 18

- x           -x

        3y = -x + 18

      ÷3     ÷3 ÷3

         y = (-1/3)x + 6

-3x - 12y = -75

+3x           +3x

        -12y = 3x - 75

       ÷-12    ÷-12 ÷-12

           y = (-1/4)x + (25/4)

Answer Link

Otras preguntas

summary of THE BALL POEM
The population of a city has increased by 35% since it was last measured. If the current population is 29,700 , what was the previous population?
Ian drinks 3 \text { pints}3 pints3, start text, space, p, i, n, t, s, end text of water during a long hike. He drinks 1\dfrac121 2 1 ​ 1, start fraction, 1, di
Which equation has a contant of proportionality equal to 1/2
Pleasssssseeeeeee hhhhhhheeeeeeellllpppp
Identify the domain of the function shown in the graph.
Where were many trenches dug? ww1
Which of the following equations describes the line shown below? Check all that apply.
Point charges q1=+2.00μC and q2=−2.00μC are placed at adjacent corners of a square for which the length of each side is 4.50 cm . Point a is at the center of th
Find P(Not a 3)????????????