connor6402 connor6402
  • 11-10-2019
  • Mathematics
contestada

Solve the system.
x+3y=7
2x-4y=24

Respuesta :

gutierrezmpx
gutierrezmpx gutierrezmpx
  • 11-10-2019

Answer:

y= -1 and x = 10

Step-by-step explanation:

(1) x+3y=7

(2) 2x-4y=24

Clear x from the 1st equation: x=7-3y

And replace x from the 2do one: 2(7-3y)-4y=24

14-6y-4y=24

-6y-4y=24-14

-10y=10

y=-10/10

y=-1

Now we have y=-1, let's finde x:

x=7-3y

x=7-3(-1)

x=7+3

x=10

Answer Link

Otras preguntas

write a 3 digit number that is greater than 699
Simplify 3 square root of 125
What is 25,000 in fraction form
someone interested in reading a personal account of life under Nazi dominance would choose which of these The Diary of Anne Frank A True Relation "A Progress t
What is the next fraction in the geometric sequence 3/4 1/2 1/3 2/9
What is 25,000 in fraction form
The major functions of lipids in organisms do NOT include a. storing energy c. forming membranes b. supporting structures d. waterproofing surfaces
How do I use the distributive law to factor 2a + 2b?
An equilateral triangle has side lengths of 40mm, what is the area of the triangle?
Tim wrote 16 as (-2)^4. is he correct?