tiffanycoretta
tiffanycoretta tiffanycoretta
  • 24-01-2022
  • Mathematics
contestada

Solve by substitution
3x-4y=-4
y=2x-4

Solve by substitution 3x4y4 y2x4 class=

Respuesta :

watsonultra2
watsonultra2 watsonultra2
  • 24-01-2022

Answer:

x=4 and y=4

Step-by-step explanation:

From first function we have:

[tex] 3x - 4y = - 4 \\ 4y = 3x + 4[/tex]

And from the second one:

[tex]y = 2x - 4 \\ 4y = 8x - 16[/tex]

Substitute them:

[tex]4y = 3x + 4 \\ 4y = 8x - 16 \\ \\ 0 = - 5x + 20 \\ x = 4 \\ y = 4[/tex]

Answer Link

Otras preguntas

Find three solutions of the equation. y=2x-6 A) (-2,-10), (1,-4), (2,-1) B) (-2,-10),(1,-4), (0,-6) C) (0,-6), (3,-2), (-2,-10) D) (1,-4),), (0,-6), (-1,-9)
Using the quadratic formula to solve 2x^2=4x-7, what's the values of x?
4 3/4 gal = how many pints
Which phase of the moon is shown? full moon first quarter waning gibbous waxing crescent
Latisha wants to get at least a B+ in her history class. To do so, she needs to have an overall average of at least 86%. So far, she has taken three tests and h
What was James K. Polk’s stance on the concept of manifest destiny
Which amendment is the only one in the history of the United States that was ratified by state conventions rather than state legislatures? a) Amendment 26 b) Am
How can the measure of each numbered angle for each figure be found?
What is the description of Organic compounds What is the description of organic compounds
HELP. FAST!!!!!!!!!!!!!! why did Rayford Logan describe one of the periods as the "nadir of race relations"?