n1java n1java
  • 25-11-2020
  • Mathematics
contestada

12. If 3x + 4y = -1 and x - 2y = 3, then y=
a) 1
b) 2
c)-1
d) 3
e) 4

13. If 2x - 4y = 8 and y=2x + 1, then x
a) 2 b) 4
c) -3
d) 3
e) -2

Respuesta :

NathanielAmara
NathanielAmara NathanielAmara
  • 25-11-2020

y=3 and x= 5

Step-by-step explanation:

  • 3×+×=-1 and 4y-2y=3
  • 4×=1 and 2y=3
  • ×=4-1 and y=3+2
  • x=3 and y=5
Answer Link

Otras preguntas

63 = -3(1 - 2n) what does n equal?
a ratio is a rate sometimes, always, or never true ?
A rubber ball is dropped onto a hard surface from a height of 8 feet, and it bounces up and down. At each bounce it rises to 90% of the height from which it fe
What is the term for molten material found below the earth's surface? A. lava B. basalt C. magma D. gabbro
I have four right angles but I am not just a rectangle. What am I?
The effect of alcohol varies from one person to another, mostly because it depends on the blood alcohol concentration, or BAC. What does blood alcohol concentra
why was the nile river well suited for settelments
When 12 is subtracted from 3 times the number the result is 24 what's the number
What happened to the population of cities in the period between the Civil War and the 1920s?
what is exponential growth and exponential decay?