pinkstonjmy23 pinkstonjmy23
  • 15-11-2019
  • Mathematics
contestada

Solve the following equations
2x+y=-1
3x-y=-9

Respuesta :

greenpigment
greenpigment greenpigment
  • 17-11-2019

Step-by-step explanation:

2x + y = -1•••• (1)

3x - y = -9••••(2)

Add eqn (1)+ eqn(2)

5x= -10

x= -2

substitute x in eqn(1)

2(-2) + y = -1

-4+y=-1

y = 3

Answer Link

Otras preguntas

what do i do next?(with the X's)
what is 18.390 centimeters converted to millimeters
An elevator is initially at rest on the second floor of a building. A person on the tenth floor pushes the down button for the elevator. Describe the motion of
Pesticides, manure and human hair are common contaminants, critically discuss how food is contaminated in these three different ways.
White house pets often become almost as well known as their owners
standard error describes a measure of the variability for the means of samples taken from a population. true or false.
Which region was the birthplace of Confucianism, buddhism and Hinduism
Round 3.9849 to the nearest hundredths place.
I need help with this problem 91+(-7)-5
What is 0.156 divided by 1.2 please explain