heartprague
heartprague heartprague
  • 11-01-2019
  • Mathematics
contestada

Use substitution to solve the linear system of equations.

y=4x
3x+5y=-46

(-8, -2)

(8, -2)

(-2, 8)

(-2, -8)

Respuesta :

jimrgrant1 jimrgrant1
  • 11-01-2019

Answer:

(- 2, - 8 )

Step-by-step explanation:

given the 2 equations

y = 4x → (1)

3x + 5y = - 46 → (2)

Substitute y = 4x into (2)

3x + 5(4x) = - 46

3x + 20x = - 46

23x = - 46 ( divide both sides by 23 )

x = - 2

substitute x = - 2 into (1)

y = 4 × - 2 = - 8

solution (- 2, - 8 )


Answer Link
ASDEI ASDEI
  • 17-01-2021

Answer:

the last one is the correct answer:)

Step-by-step explanation:

plz mark brainleist :)

Answer Link

Otras preguntas

If the ratio of dogs to cats at an animal shelter is 2:5, then the number of cats is _____ times the number of dogs. CHECK
What are complex compounds produced by living organisms called?
how to estimate 184÷9 in multiplication
what is a suffix for marine
Amy wants to run the 26 miles of the marathon in 4.5 hours. at what rate will she have to run to reach thisbgoal??
Which expression is equivalent to 3x(-4x^2+5x-8)-6(x^2-5x+7)? A. 12x^3-9x^2+6x-42 B.-12x^3-54x^2+6x-42 C.-12x^3+9x^2+6x-42 D.-27x^3-6x^2+6x-42
Will upvote!! True or False- The parts of a mixture keep their own properties when they are combined.
Which produces the sediments that ultimately lead to soil formation? A. rivers B. plants C. weathering D. rainfall
Which of the following ordered pairs corresponds to an arrow on a mapping diagram that starts at 4 and ends at 1? Map Diagram: Input 1 2 3 4 5 Output 1 2 3 4 5
Dominance is a ranking among animals that determines access to resources and is determined by
good job